Cálculo Exemplos

$\int \cos^{6} (\frac{y}{2}) d y$

Etapa 1

Deixe $u_{1} = \frac{y}{2}$ . Depois, $d u_{1} = \frac{1}{2} d y$ , então, $2 d u_{1} = d y$ . Reescreva usando $u_{1}$ e $d$ $u_{1}$ .

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Etapa 1.1

Deixe $u_{1} = \frac{y}{2}$ . Encontre $\frac{d u_{1}}{d y}$ .

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Etapa 1.1.1

Diferencie $\frac{y}{2}$ .

$\frac{d}{d y} [\frac{y}{2}]$

Etapa 1.1.2

Como $\frac{1}{2}$ é constante em relação a $y$ , a derivada de $\frac{y}{2}$ em relação a $y$ é $\frac{1}{2} \frac{d}{d y} [y]$ .

$\frac{1}{2} \frac{d}{d y} [y]$

Etapa 1.1.3

Diferencie usando a regra da multiplicação de potências, que determina que $\frac{d}{d y} [y^{n}]$ é $n y^{n - 1}$ , em que $n = 1$ .

$\frac{1}{2} \cdot 1$

Etapa 1.1.4

Multiplique $\frac{1}{2}$ por $1$ .

$\frac{1}{2}$

Etapa 1.2

Reescreva o problema usando $u_{1}$ e $d u_{1}$ .

$\int \cos^{6} (u_{1}) \frac{1}{\frac{1}{2}} d u_{1}$

Etapa 2

Simplifique.

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Etapa 2.1

Multiplique pelo inverso da fração para dividir por $\frac{1}{2}$ .

$\int \cos^{6} (u_{1}) (1 \cdot 2) d u_{1}$

Etapa 2.2

Multiplique $2$ por $1$ .

$\int \cos^{6} (u_{1}) \cdot 2 d u_{1}$

Etapa 2.3

Mova $2$ para a esquerda de $\cos^{6} (u_{1})$ .

$\int 2 \cos^{6} (u_{1}) d u_{1}$

Etapa 3

Como $2$ é constante com relação a $u_{1}$ , mova $2$ para fora da integral.

$2 \int \cos^{6} (u_{1}) d u_{1}$

Etapa 4

Simplifique com fatoração.

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Etapa 4.1

Fatore $2$ de $6$ .

$2 \int {\cos (u_{1})}^{2 (3)} d u_{1}$

Etapa 4.2

Reescreva ${\cos (u_{1})}^{2 (3)}$ como exponenciação.

$2 \int {(\cos^{2} (u_{1}))}^{3} d u_{1}$

Etapa 5

Use a fórmula do arco metade para reescrever $\cos^{2} (u_{1})$ como $\frac{1 + \cos (2 u_{1})}{2}$ .

$2 \int {(\frac{1 + \cos (2 u_{1})}{2})}^{3} d u_{1}$

Etapa 6

Deixe $u_{2} = 2 u_{1}$ . Depois, $d u_{2} = 2 d u_{1}$ , então, $\frac{1}{2} d u_{2} = d u_{1}$ . Reescreva usando $u_{2}$ e $d$ $u_{2}$ .

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Etapa 6.1

Deixe $u_{2} = 2 u_{1}$ . Encontre $\frac{d u_{2}}{d u_{1}}$ .

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Etapa 6.1.1

Diferencie $2 u_{1}$ .

$\frac{d}{d u_{1}} [2 u_{1}]$

Etapa 6.1.2

Como $2$ é constante em relação a $u_{1}$ , a derivada de $2 u_{1}$ em relação a $u_{1}$ é $2 \frac{d}{d u_{1}} [u_{1}]$ .

$2 \frac{d}{d u_{1}} [u_{1}]$

Etapa 6.1.3

Diferencie usando a regra da multiplicação de potências, que determina que $\frac{d}{d u_{1}} [{u_{1}}^{n}]$ é $n {u_{1}}^{n - 1}$ , em que $n = 1$ .

$2 \cdot 1$

Etapa 6.1.4

Multiplique $2$ por $1$ .

$2$

Etapa 6.2

Reescreva o problema usando $u_{2}$ e $d u_{2}$ .

$2 \int {(\frac{1 + \cos (u_{2})}{2})}^{3} \frac{1}{2} d u_{2}$

Etapa 7

Como $\frac{1}{2}$ é constante com relação a $u_{2}$ , mova $\frac{1}{2}$ para fora da integral.

$2 (\frac{1}{2} \int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2})$

Etapa 8

Simplifique multiplicando.

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Etapa 8.1

Simplifique.

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Etapa 8.1.1

Combine $\frac{1}{2}$ e $2$ .

$\frac{2}{2} \int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2}$

Etapa 8.1.2

Cancele o fator comum de $2$ .

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Etapa 8.1.2.1

Cancele o fator comum.

$\frac{2}{2} \int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2}$

Etapa 8.1.2.2

Reescreva a expressão.

$1 \int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2}$

Etapa 8.1.3

Multiplique $\int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2}$ por $1$ .

$\int {(\frac{1 + \cos (u_{2})}{2})}^{3} d u_{2}$

Etapa 8.2

Reescreva $\frac{1 + \cos (u_{2})}{2}$ como um produto.

$\int {(\frac{1}{2} \cdot (1 + \cos (u_{2})))}^{3} d u_{2}$

Etapa 8.3

Expanda ${(\frac{1}{2} \cdot (1 + \cos (u_{2})))}^{3}$ .

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Etapa 8.3.1

Reescreva a exponenciação como um produto.

$\int \frac{1}{2} \cdot (1 + \cos (u_{2})) {(\frac{1}{2} \cdot (1 + \cos (u_{2})))}^{2} d u_{2}$

Etapa 8.3.2

Reescreva a exponenciação como um produto.

$\int \frac{1}{2} \cdot (1 + \cos (u_{2})) (\frac{1}{2} \cdot (1 + \cos (u_{2})) (\frac{1}{2} \cdot (1 + \cos (u_{2})))) d u_{2}$

Etapa 8.3.3

Aplique a propriedade distributiva.

$\int (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) (\frac{1}{2} \cdot (1 + \cos (u_{2})) (\frac{1}{2} \cdot (1 + \cos (u_{2})))) d u_{2}$

Etapa 8.3.4

Aplique a propriedade distributiva.

$\int (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) ((\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) (\frac{1}{2} \cdot (1 + \cos (u_{2})))) d u_{2}$

Etapa 8.3.5

Aplique a propriedade distributiva.

$\int (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) ((\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.6

Aplique a propriedade distributiva.

$\int (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.7

Aplique a propriedade distributiva.

$\int (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2})) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 + \frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.8

Aplique a propriedade distributiva.

Etapa 8.3.9

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.10

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.11

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.12

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.13

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.14

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.15

Aplique a propriedade distributiva.

$\int \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.16

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.17

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.18

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2})) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.19

Mova $\frac{1}{2}$ .

$\int 1 \cdot \frac{1}{2} (1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.20

Mova os parênteses.

$\int 1 \cdot \frac{1}{2} (1 \cdot 1 \frac{1}{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.21

Mova os parênteses.

$\int 1 \cdot \frac{1}{2} (1 \cdot 1) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.22

Mova $\frac{1}{2}$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.23

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.24

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.25

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} \frac{1}{2}) \cdot \cos (u_{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.26

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.27

Mova $\frac{1}{2}$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.28

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.29

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2})) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.30

Mova $\cos (u_{2})$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1 \cos (u_{2}) \cdot \frac{1}{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.31

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2}) + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.32

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2} \cos (u_{2})) \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.33

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2}) \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.34

Mova $\frac{1}{2}$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.35

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.36

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2}) \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.37

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2})) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.38

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.39

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} (1 \cdot \frac{1}{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.40

Mova $\frac{1}{2}$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.41

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot 1 \frac{1}{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.42

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot 1) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.43

Mova $\cos (u_{2})$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot 1 \cdot 1 \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.44

Mova $\frac{1}{2}$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.45

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} (\frac{1}{2} \cdot \cos (u_{2}))) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.46

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} \frac{1}{2}) \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.47

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2}) \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.48

Mova $\cos (u_{2})$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + \frac{1}{2} \cdot 1 \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.49

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1)) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.50

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2})) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.51

Mova $\cos (u_{2})$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot 1 \cos (u_{2}) \cdot \frac{1}{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.52

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2}) + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.53

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2} \cos (u_{2})) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.54

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot \cos (u_{2}) (1 \cdot \frac{1}{2}) \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.55

Mova $\cos (u_{2})$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + \frac{1}{2} \cdot 1 \cos (u_{2}) \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.56

Reordene $\frac{1}{2}$ e $1$ .

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}))) d u_{2}$

Etapa 8.3.57

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2}) \cdot \cos (u_{2}) d u_{2}$

Etapa 8.3.58

Mova os parênteses.

$\int 1 \cdot 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cdot \frac{1}{2} + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \frac{1}{2} \cdot \cos (u_{2}) + 1 \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} \cos (u_{2}) \cdot \frac{1}{2} + \frac{1}{2} \cdot \cos (u_{2}) (\frac{1}{2} \cdot \cos (u_{2})) \frac{1}{2} \cdot \cos (u_{2}) d u_{2}$

Etapa 8.3.59

Multiplique $1$ por $1$ .

$\int 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.60

Multiplique $1$ por $1$ .

$\int 1 (\frac{1}{2}) \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.61

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.62

Multiplique $\frac{1}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{2 \cdot 2} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.63

Multiplique $2$ por $2$ .

$\int \frac{1}{4} \cdot \frac{1}{2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.64

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{4 \cdot 2} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.65

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.66

Multiplique $1$ por $1$ .

$\int \frac{1}{8} + 1 (\frac{1}{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.67

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{1}{2} \cdot \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.68

Multiplique $\frac{1}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{1}{2 \cdot 2} \cdot \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.69

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{1}{4} \cdot \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.70

Multiplique $\frac{1}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{1}{4 \cdot 2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.71

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{1}{8} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.72

Combine $\frac{1}{8}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.73

Multiplique $1$ por $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.74

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.75

Multiplique $\frac{1}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{2 \cdot 2} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.76

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{4} \cos (u_{2}) \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.77

Combine $\frac{1}{4}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4} \cdot \frac{1}{2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.78

Multiplique $\frac{\cos (u_{2})}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4 \cdot 2} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.79

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + 1 (\frac{1}{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.80

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{2} \cdot \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.81

Multiplique $\frac{1}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{2 \cdot 2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.82

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{4} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.83

Combine $\frac{1}{4}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.84

Multiplique $\frac{\cos (u_{2})}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4 \cdot 2} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.85

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} \cos (u_{2}) + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.86

Combine $\frac{\cos (u_{2})}{8}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2}) \cos (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.87

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.88

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos^{1} (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.89

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{{\cos (u_{2})}^{1 + 1}}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.90

Some $1$ e $1$ .

$\int \frac{1}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.91

Some $\frac{\cos (u_{2})}{8}$ e $\frac{\cos (u_{2})}{8}$ .

$\int \frac{1}{8} + 2 \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.92

Combine $2$ e $\frac{\cos (u_{2})}{8}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + 1 \cdot 1 \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.93

Multiplique $1$ por $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.94

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.95

Combine $\frac{1}{2}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2} \cdot \frac{1}{2} \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.96

Multiplique $\frac{\cos (u_{2})}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2 \cdot 2} \cdot \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.97

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{4} \cdot \frac{1}{2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.98

Multiplique $\frac{\cos (u_{2})}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{4 \cdot 2} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.99

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.100

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.101

Combine $\frac{1}{2}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{2} \cdot \frac{1}{2} \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.102

Multiplique $\frac{\cos (u_{2})}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{2 \cdot 2} \cdot \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.103

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.104

Multiplique $\frac{\cos (u_{2})}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{4 \cdot 2} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.105

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} \cos (u_{2}) + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.106

Combine $\frac{\cos (u_{2})}{8}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos (u_{2}) \cos (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.107

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.108

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos^{1} (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.109

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{{\cos (u_{2})}^{1 + 1}}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.110

Some $1$ e $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + 1 (\frac{1}{2}) \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.111

Multiplique $\frac{1}{2}$ por $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.112

Combine $\frac{1}{2}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2} \cdot \frac{1}{2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.113

Multiplique $\frac{\cos (u_{2})}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2 \cdot 2} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.114

Multiplique $2$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{4} \cos (u_{2}) \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.115

Combine $\frac{\cos (u_{2})}{4}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2}) \cos (u_{2})}{4} \cdot \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.116

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos (u_{2})}{4} \cdot \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.117

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos^{1} (u_{2})}{4} \cdot \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.118

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{{\cos (u_{2})}^{1 + 1}}{4} \cdot \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.119

Some $1$ e $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{4} \cdot \frac{1}{2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.120

Multiplique $\frac{\cos^{2} (u_{2})}{4}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{4 \cdot 2} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.121

Multiplique $4$ por $2$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.122

Combine $\frac{1}{2}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2} \cdot \frac{1}{2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.123

Multiplique $\frac{\cos (u_{2})}{2}$ por $\frac{1}{2}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{2 \cdot 2} \cos (u_{2}) \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.124

Multiplique $2$ por $2$ .

Etapa 8.3.125

Combine $\frac{\cos (u_{2})}{4}$ e $\cos (u_{2})$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2}) \cos (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.126

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.127

Eleve $\cos (u_{2})$ à potência de $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{1} (u_{2}) \cos^{1} (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.128

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{{\cos (u_{2})}^{1 + 1}}{4} \cdot \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.129

Some $1$ e $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{4} \cdot \frac{1}{2} \cos (u_{2}) d u_{2}$

Etapa 8.3.130

Multiplique $\frac{\cos^{2} (u_{2})}{4}$ por $\frac{1}{2}$ .

Etapa 8.3.131

Multiplique $4$ por $2$ .

Etapa 8.3.132

Combine $\frac{\cos^{2} (u_{2})}{8}$ e $\cos (u_{2})$ .

Etapa 8.3.133

Eleve $\cos (u_{2})$ à potência de $1$ .

Etapa 8.3.134

Use a regra da multiplicação de potências $a^{m} a^{n} = a^{m + n}$ para combinar expoentes.

Etapa 8.3.135

Some $2$ e $1$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} d u_{2}$

Etapa 8.3.136

Some $\frac{\cos^{2} (u_{2})}{8}$ e $\frac{\cos^{2} (u_{2})}{8}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + 2 \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} d u_{2}$

Etapa 8.3.137

Combine $2$ e $\frac{\cos^{2} (u_{2})}{8}$ .

$\int \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} d u_{2}$

Etapa 8.3.138

Reordene $\frac{2 \cos (u_{2})}{8}$ e $\frac{\cos^{2} (u_{2})}{8}$ .

$\int \frac{1}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} d u_{2}$

Etapa 8.3.139

Reordene $\frac{1}{8}$ e $\frac{\cos^{2} (u_{2})}{8}$ .

$\int \frac{\cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} d u_{2}$

Etapa 8.3.140

Reordene $\frac{2 \cos^{2} (u_{2})}{8}$ e $\frac{\cos^{3} (u_{2})}{8}$ .

$\int \frac{\cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} d u_{2}$

Etapa 8.3.141

Mova $\frac{\cos (u_{2})}{8}$ .

$\int \frac{\cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.142

Mova $\frac{2 \cos (u_{2})}{8}$ .

$\int \frac{\cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{\cos^{3} (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.143

Mova $\frac{1}{8}$ .

$\int \frac{\cos^{2} (u_{2})}{8} + \frac{\cos^{3} (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.144

Reordene $\frac{\cos^{2} (u_{2})}{8}$ e $\frac{\cos^{3} (u_{2})}{8}$ .

$\int \frac{\cos^{3} (u_{2})}{8} + \frac{\cos^{2} (u_{2})}{8} + \frac{2 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.145

Combine os numeradores em relação ao denominador comum.

$\int \frac{\cos^{3} (u_{2})}{8} + \frac{\cos^{2} (u_{2}) + 2 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.146

Some $\cos^{2} (u_{2})$ e $2 \cos^{2} (u_{2})$ .

$\int \frac{\cos^{3} (u_{2})}{8} + \frac{3 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2})}{8} + \frac{\cos (u_{2})}{8} d u_{2}$

Etapa 8.3.147

Combine os numeradores em relação ao denominador comum.

$\int \frac{\cos^{3} (u_{2})}{8} + \frac{3 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{2 \cos (u_{2}) + \cos (u_{2})}{8} d u_{2}$

Etapa 8.3.148

Some $2 \cos (u_{2})$ e $\cos (u_{2})$ .

$\int \frac{\cos^{3} (u_{2})}{8} + \frac{3 \cos^{2} (u_{2})}{8} + \frac{1}{8} + \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 9

Divida a integral única em várias integrais.

$\int \frac{\cos^{3} (u_{2})}{8} d u_{2} + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 10

Como $\frac{1}{8}$ é constante com relação a $u_{2}$ , mova $\frac{1}{8}$ para fora da integral.

$\frac{1}{8} \int \cos^{3} (u_{2}) d u_{2} + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 11

Fatore $\cos^{2} (u_{2})$ .

$\frac{1}{8} \int \cos^{2} (u_{2}) \cos (u_{2}) d u_{2} + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 12

Usando a fórmula de Pitágoras, reescreva $\cos^{2} (u_{2})$ como $1 - \sin^{2} (u_{2})$ .

$\frac{1}{8} \int (1 - \sin^{2} (u_{2})) \cos (u_{2}) d u_{2} + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 13

Deixe $u_{3} = \sin (u_{2})$ . Depois, $d u_{3} = \cos (u_{2}) d u_{2}$ , então, $\frac{1}{\cos (u_{2})} d u_{3} = d u_{2}$ . Reescreva usando $u_{3}$ e $d$ $u_{3}$ .

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Etapa 13.1

Deixe $u_{3} = \sin (u_{2})$ . Encontre $\frac{d u_{3}}{d u_{2}}$ .

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Etapa 13.1.1

Diferencie $\sin (u_{2})$ .

$\frac{d}{d u_{2}} [\sin (u_{2})]$

Etapa 13.1.2

A derivada de $\sin (u_{2})$ em relação a $u_{2}$ é $\cos (u_{2})$ .

$\cos (u_{2})$

Etapa 13.2

Reescreva o problema usando $u_{3}$ e $d u_{3}$ .

$\frac{1}{8} \int 1 - {u_{3}}^{2} d u_{3} + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 14

Divida a integral única em várias integrais.

$\frac{1}{8} (\int d u_{3} + \int - {u_{3}}^{2} d u_{3}) + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 15

Aplique a regra da constante.

$\frac{1}{8} (u_{3} + C + \int - {u_{3}}^{2} d u_{3}) + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 16

Como $- 1$ é constante com relação a $u_{3}$ , mova $- 1$ para fora da integral.

$\frac{1}{8} (u_{3} + C - \int {u_{3}}^{2} d u_{3}) + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 17

De acordo com a regra da multiplicação de potências, a integral de ${u_{3}}^{2}$ com relação a $u_{3}$ é $\frac{1}{3} {u_{3}}^{3}$ .

$\frac{1}{8} (u_{3} + C - (\frac{1}{3} {u_{3}}^{3} + C)) + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 18

Combine $\frac{1}{3}$ e ${u_{3}}^{3}$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \int \frac{3 \cos^{2} (u_{2})}{8} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 19

Como $\frac{3}{8}$ é constante com relação a $u_{2}$ , mova $\frac{3}{8}$ para fora da integral.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{8} \int \cos^{2} (u_{2}) d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 20

Use a fórmula do arco metade para reescrever $\cos^{2} (u_{2})$ como $\frac{1 + \cos (2 u_{2})}{2}$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{8} \int \frac{1 + \cos (2 u_{2})}{2} d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 21

Como $\frac{1}{2}$ é constante com relação a $u_{2}$ , mova $\frac{1}{2}$ para fora da integral.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{8} (\frac{1}{2} \int 1 + \cos (2 u_{2}) d u_{2}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 22

Simplifique.

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Etapa 22.1

Multiplique $\frac{1}{2}$ por $\frac{3}{8}$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{2 \cdot 8} \int 1 + \cos (2 u_{2}) d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 22.2

Multiplique $2$ por $8$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} \int 1 + \cos (2 u_{2}) d u_{2} + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 23

Divida a integral única em várias integrais.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (\int d u_{2} + \int \cos (2 u_{2}) d u_{2}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 24

Aplique a regra da constante.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \int \cos (2 u_{2}) d u_{2}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 25

Deixe $u_{4} = 2 u_{2}$ . Depois, $d u_{4} = 2 d u_{2}$ , então, $\frac{1}{2} d u_{4} = d u_{2}$ . Reescreva usando $u_{4}$ e $d$ $u_{4}$ .

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Etapa 25.1

Deixe $u_{4} = 2 u_{2}$ . Encontre $\frac{d u_{4}}{d u_{2}}$ .

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Etapa 25.1.1

Diferencie $2 u_{2}$ .

$\frac{d}{d u_{2}} [2 u_{2}]$

Etapa 25.1.2

Como $2$ é constante em relação a $u_{2}$ , a derivada de $2 u_{2}$ em relação a $u_{2}$ é $2 \frac{d}{d u_{2}} [u_{2}]$ .

$2 \frac{d}{d u_{2}} [u_{2}]$

Etapa 25.1.3

Diferencie usando a regra da multiplicação de potências, que determina que $\frac{d}{d u_{2}} [{u_{2}}^{n}]$ é $n {u_{2}}^{n - 1}$ , em que $n = 1$ .

$2 \cdot 1$

Etapa 25.1.4

Multiplique $2$ por $1$ .

$2$

Etapa 25.2

Reescreva o problema usando $u_{4}$ e $d u_{4}$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \int \cos (u_{4}) \frac{1}{2} d u_{4}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 26

Combine $\cos (u_{4})$ e $\frac{1}{2}$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \int \frac{\cos (u_{4})}{2} d u_{4}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 27

Como $\frac{1}{2}$ é constante com relação a $u_{4}$ , mova $\frac{1}{2}$ para fora da integral.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \frac{1}{2} \int \cos (u_{4}) d u_{4}) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 28

A integral de $\cos (u_{4})$ com relação a $u_{4}$ é $\sin (u_{4})$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \frac{1}{2} (\sin (u_{4}) + C)) + \int \frac{1}{8} d u_{2} + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 29

Aplique a regra da constante.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \frac{1}{2} (\sin (u_{4}) + C)) + \frac{1}{8} u_{2} + C + \int \frac{3 \cos (u_{2})}{8} d u_{2}$

Etapa 30

Como $\frac{3}{8}$ é constante com relação a $u_{2}$ , mova $\frac{3}{8}$ para fora da integral.

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \frac{1}{2} (\sin (u_{4}) + C)) + \frac{1}{8} u_{2} + C + \frac{3}{8} \int \cos (u_{2}) d u_{2}$

Etapa 31

A integral de $\cos (u_{2})$ com relação a $u_{2}$ é $\sin (u_{2})$ .

$\frac{1}{8} (u_{3} + C - (\frac{{u_{3}}^{3}}{3} + C)) + \frac{3}{16} (u_{2} + C + \frac{1}{2} (\sin (u_{4}) + C)) + \frac{1}{8} u_{2} + C + \frac{3}{8} (\sin (u_{2}) + C)$

Etapa 32

Simplifique.

$\frac{u_{3}}{8} - \frac{{u_{3}}^{3}}{24} + \frac{3 u_{2}}{16} + \frac{3 \sin (u_{4})}{32} + \frac{u_{2}}{8} + \frac{3}{8} \sin (u_{2}) + C$

Etapa 33

Reordene os termos.

$\frac{1}{8} u_{3} - \frac{1}{24} {u_{3}}^{3} + \frac{3}{16} u_{2} + \frac{3}{32} \sin (u_{4}) + \frac{1}{8} u_{2} + \frac{3}{8} \sin (u_{2}) + C$

Etapa 34

Substitua novamente para cada variável de substituição de integração.

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Etapa 34.1

Substitua todas as ocorrências de $u_{3}$ por $\sin (u_{2})$ .

$\frac{1}{8} \sin (u_{2}) - \frac{1}{24} \sin^{3} (u_{2}) + \frac{3}{16} u_{2} + \frac{3}{32} \sin (u_{4}) + \frac{1}{8} u_{2} + \frac{3}{8} \sin (u_{2}) + C$

Etapa 34.2

Substitua todas as ocorrências de $u_{2}$ por $2 u_{1}$ .

$\frac{1}{8} \sin (2 u_{1}) - \frac{1}{24} \sin^{3} (2 u_{1}) + \frac{3}{16} (2 u_{1}) + \frac{3}{32} \sin (u_{4}) + \frac{1}{8} (2 u_{1}) + \frac{3}{8} \sin (2 u_{1}) + C$

Etapa 34.3

Substitua todas as ocorrências de $u_{4}$ por $2 u_{2}$ .

$\frac{1}{8} \sin (2 u_{1}) - \frac{1}{24} \sin^{3} (2 u_{1}) + \frac{3}{16} (2 u_{1}) + \frac{3}{32} \sin (2 u_{2}) + \frac{1}{8} (2 u_{1}) + \frac{3}{8} \sin (2 u_{1}) + C$

Etapa 34.4

Substitua todas as ocorrências de $u_{1}$ por $\frac{y}{2}$ .

$\frac{1}{8} \sin (2 \frac{y}{2}) - \frac{1}{24} \sin^{3} (2 \frac{y}{2}) + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 u_{2}) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 34.5

Substitua todas as ocorrências de $u_{2}$ por $2 u_{1}$ .

$\frac{1}{8} \sin (2 \frac{y}{2}) - \frac{1}{24} \sin^{3} (2 \frac{y}{2}) + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 (2 u_{1})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 34.6

Substitua todas as ocorrências de $u_{1}$ por $\frac{y}{2}$ .

$\frac{1}{8} \sin (2 \frac{y}{2}) - \frac{1}{24} \sin^{3} (2 \frac{y}{2}) + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35

Simplifique.

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Etapa 35.1

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{1}{24} \sin^{3} (2 \frac{y}{2}) + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.2

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{1}{24} \sin^{3} (\frac{2 y}{2}) + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.3

Combine $\sin^{3} (\frac{2 y}{2})$ e $\frac{1}{24}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{3}{16} (2 \frac{y}{2}) + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.4

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{3}{16} \cdot \frac{2 y}{2} + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.5

Multiplique $\frac{3}{16}$ por $\frac{2 y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{3 (2 y)}{16 \cdot 2} + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.6

Multiplique $2$ por $3$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{16 \cdot 2} + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.7

Multiplique $16$ por $2$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (2 (2 \frac{y}{2})) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.8

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (2 \frac{2 y}{2}) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.9

Combine $2$ e $\frac{2 y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{2 (2 y)}{2}) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.10

Multiplique $2$ por $2$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{1}{8} (2 \frac{y}{2}) + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.11

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{1}{8} \cdot \frac{2 y}{2} + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.12

Multiplique $\frac{1}{8}$ por $\frac{2 y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{8 \cdot 2} + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.13

Multiplique $8$ por $2$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (2 \frac{y}{2}) + C$

Etapa 35.14

Combine $2$ e $\frac{y}{2}$ .

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36

Simplifique.

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Etapa 36.1

Cancele o fator comum de $2$ .

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Etapa 36.1.1

Cancele o fator comum.

$\frac{1}{8} \sin (\frac{2 y}{2}) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.1.2

Divida $y$ por $1$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.2

Cancele o fator comum de $2$ .

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Etapa 36.2.1

Cancele o fator comum.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (\frac{2 y}{2})}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.2.2

Divida $y$ por $1$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{6 y}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.3

Cancele o fator comum de $6$ e $32$ .

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Etapa 36.3.1

Fatore $2$ de $6 y$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{2 (3 y)}{32} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.3.2

Cancele os fatores comuns.

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Etapa 36.3.2.1

Fatore $2$ de $32$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{2 (3 y)}{2 (16)} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.3.2.2

Cancele o fator comum.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{2 (3 y)}{2 \cdot 16} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.3.2.3

Reescreva a expressão.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (\frac{4 y}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.4

Cancele o fator comum de $4$ e $2$ .

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Etapa 36.4.1

Fatore $2$ de $4 y$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (\frac{2 (2 y)}{2}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.4.2

Cancele os fatores comuns.

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Etapa 36.4.2.1

Fatore $2$ de $2$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (\frac{2 (2 y)}{2 (1)}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.4.2.2

Cancele o fator comum.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (\frac{2 (2 y)}{2 \cdot 1}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.4.2.3

Reescreva a expressão.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (\frac{2 y}{1}) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.4.2.4

Divida $2 y$ por $1$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{2 y}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.5

Cancele o fator comum de $2$ e $16$ .

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Etapa 36.5.1

Fatore $2$ de $2 y$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{2 (y)}{16} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.5.2

Cancele os fatores comuns.

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Etapa 36.5.2.1

Fatore $2$ de $16$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{2 y}{2 \cdot 8} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.5.2.2

Cancele o fator comum.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{2 y}{2 \cdot 8} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.5.2.3

Reescreva a expressão.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{y}{8} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.6

Cancele o fator comum de $2$ .

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Etapa 36.6.1

Cancele o fator comum.

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{y}{8} + \frac{3}{8} \sin (\frac{2 y}{2}) + C$

Etapa 36.6.2

Divida $y$ por $1$ .

$\frac{1}{8} \sin (y) - \frac{\sin^{3} (y)}{24} + \frac{3 y}{16} + \frac{3}{32} \sin (2 y) + \frac{y}{8} + \frac{3}{8} \sin (y) + C$

Etapa 36.7

Reordene os termos.

$\frac{1}{8} \sin (y) - \frac{1}{24} \sin^{3} (y) + \frac{3}{16} y + \frac{3}{32} \sin (2 y) + \frac{1}{8} y + \frac{3}{8} \sin (y) + C$