Cálculo Ejemplos

$\ln (\sqrt{\frac{1 + \sin (x)}{1 - \sin (x)}})$

Paso 1

Usa $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ para reescribir $\sqrt{\frac{1 + \sin (x)}{1 - \sin (x)}}$ como ${(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}$ .

$\frac{d}{d x} [\ln ({(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}})]$

Paso 2

Diferencia con la regla de la cadena, que establece que $\frac{d}{d x} [f (g (x))]$ es $f' (g (x)) g' (x)$ donde $f (x) = \ln (x)$ y $g (x) = {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}$ .

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Paso 2.1

Para aplicar la regla de la cadena, establece $u_{1}$ como ${(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}$ .

$\frac{d}{d u_{1}} [\ln (u_{1})] \frac{d}{d x} [{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}]$

Paso 2.2

La derivada de $\ln (u_{1})$ con respecto a $u_{1}$ es $\frac{1}{u_{1}}$ .

$\frac{1}{u_{1}} \frac{d}{d x} [{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}]$

Paso 2.3

Reemplaza todos los casos de $u_{1}$ con ${(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \frac{d}{d x} [{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}]$

Paso 3

Diferencia con la regla de la cadena, que establece que $\frac{d}{d x} [f (g (x))]$ es $f' (g (x)) g' (x)$ donde $f (x) = x^{\frac{1}{2}}$ y $g (x) = \frac{1 + \sin (x)}{1 - \sin (x)}$ .

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Paso 3.1

Para aplicar la regla de la cadena, establece $u_{2}$ como $\frac{1 + \sin (x)}{1 - \sin (x)}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{d}{d u_{2}} [{u_{2}}^{\frac{1}{2}}] \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 3.2

Diferencia con la regla de la potencia, que establece que $\frac{d}{d u_{2}} [{u_{2}}^{n}]$ es $n {u_{2}}^{n - 1}$ donde $n = \frac{1}{2}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {u_{2}}^{\frac{1}{2} - 1} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 3.3

Reemplaza todos los casos de $u_{2}$ con $\frac{1 + \sin (x)}{1 - \sin (x)}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2} - 1} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 4

Para escribir $- 1$ como una fracción con un denominador común, multiplica por $\frac{2}{2}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2} - 1 \cdot \frac{2}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 5

Combina $- 1$ y $\frac{2}{2}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2} + \frac{- 1 \cdot 2}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 6

Combina los numeradores sobre el denominador común.

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1 - 1 \cdot 2}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 7

Simplifica el numerador.

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Paso 7.1

Multiplica $- 1$ por $2$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1 - 2}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 7.2

Resta $2$ de $1$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{- 1}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 8

Mueve el negativo al frente de la fracción.

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} (\frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{d}{d x} [\frac{1 + \sin (x)}{1 - \sin (x)}])$

Paso 9

Diferencia con la regla del cociente, que establece que $\frac{d}{d x} [\frac{f (x)}{g (x)}]$ es $\frac{g (x) \frac{d}{d x} [f (x)] - f (x) \frac{d}{d x} [g (x)]}{{g (x)}^{2}}$ donde $f (x) = 1 + \sin (x)$ y $g (x) = 1 - \sin (x)$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \frac{d}{d x} [1 + \sin (x)] - (1 + \sin (x)) \frac{d}{d x} [1 - \sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 10

Diferencia.

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Paso 10.1

Según la regla de la suma, la derivada de $1 + \sin (x)$ con respecto a $x$ es $\frac{d}{d x} [1] + \frac{d}{d x} [\sin (x)]$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) (\frac{d}{d x} [1] + \frac{d}{d x} [\sin (x)]) - (1 + \sin (x)) \frac{d}{d x} [1 - \sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 10.2

Como $1$ es constante con respecto a $x$ , la derivada de $1$ con respecto a $x$ es $0$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) (0 + \frac{d}{d x} [\sin (x)]) - (1 + \sin (x)) \frac{d}{d x} [1 - \sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 10.3

Suma $0$ y $\frac{d}{d x} [\sin (x)]$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \frac{d}{d x} [\sin (x)] - (1 + \sin (x)) \frac{d}{d x} [1 - \sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 11

La derivada de $\sin (x)$ con respecto a $x$ es $\cos (x)$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) - (1 + \sin (x)) \frac{d}{d x} [1 - \sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 12

Diferencia.

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Paso 12.1

Según la regla de la suma, la derivada de $1 - \sin (x)$ con respecto a $x$ es $\frac{d}{d x} [1] + \frac{d}{d x} [- \sin (x)]$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) - (1 + \sin (x)) (\frac{d}{d x} [1] + \frac{d}{d x} [- \sin (x)])}{{(1 - \sin (x))}^{2}}$

Paso 12.2

Como $1$ es constante con respecto a $x$ , la derivada de $1$ con respecto a $x$ es $0$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) - (1 + \sin (x)) (0 + \frac{d}{d x} [- \sin (x)])}{{(1 - \sin (x))}^{2}}$

Paso 12.3

Suma $0$ y $\frac{d}{d x} [- \sin (x)]$ .

Paso 12.4

Como $- 1$ es constante con respecto a $x$ , la derivada de $- \sin (x)$ con respecto a $x$ es $- \frac{d}{d x} [\sin (x)]$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) - (1 + \sin (x)) (- \frac{d}{d x} [\sin (x)])}{{(1 - \sin (x))}^{2}}$

Paso 12.5

Multiplica.

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Paso 12.5.1

Multiplica $- 1$ por $- 1$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) + 1 (1 + \sin (x)) \frac{d}{d x} [\sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 12.5.2

Multiplica $1 + \sin (x)$ por $1$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{1}{2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}} \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \frac{d}{d x} [\sin (x)]}{{(1 - \sin (x))}^{2}}$

Paso 13

La derivada de $\sin (x)$ con respecto a $x$ es $\cos (x)$ .

Paso 14

Combina fracciones.

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Paso 14.1

Multiplica $\frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{{(1 - \sin (x))}^{2}}$ por $\frac{1}{2}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{{(1 - \sin (x))}^{2} \cdot 2} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}}$

Paso 14.2

Mueve $2$ a la izquierda de ${(1 - \sin (x))}^{2}$ .

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{2 \cdot {(1 - \sin (x))}^{2}} {(\frac{1 + \sin (x)}{1 - \sin (x)})}^{- \frac{1}{2}}$

Paso 15

Simplifica.

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Paso 15.1

Cambia el signo del exponente; para ello, reescribe la base como su recíproca.

$\frac{1}{{(\frac{1 + \sin (x)}{1 - \sin (x)})}^{\frac{1}{2}}} \cdot \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{2 {(1 - \sin (x))}^{2}} {(\frac{1 - \sin (x)}{1 + \sin (x)})}^{\frac{1}{2}}$

Paso 15.2

Aplica la regla del producto a $\frac{1 + \sin (x)}{1 - \sin (x)}$ .

$\frac{1}{\frac{{(1 + \sin (x))}^{\frac{1}{2}}}{{(1 - \sin (x))}^{\frac{1}{2}}}} \cdot \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{2 {(1 - \sin (x))}^{2}} {(\frac{1 - \sin (x)}{1 + \sin (x)})}^{\frac{1}{2}}$

Paso 15.3

Aplica la regla del producto a $\frac{1 - \sin (x)}{1 + \sin (x)}$ .

$\frac{1}{\frac{{(1 + \sin (x))}^{\frac{1}{2}}}{{(1 - \sin (x))}^{\frac{1}{2}}}} \cdot \frac{(1 - \sin (x)) \cos (x) + (1 + \sin (x)) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.4

Aplica la propiedad distributiva.

$\frac{1}{\frac{{(1 + \sin (x))}^{\frac{1}{2}}}{{(1 - \sin (x))}^{\frac{1}{2}}}} \cdot \frac{1 \cos (x) - \sin (x) \cos (x) + (1 + \sin (x)) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.5

Aplica la propiedad distributiva.

$\frac{1}{\frac{{(1 + \sin (x))}^{\frac{1}{2}}}{{(1 - \sin (x))}^{\frac{1}{2}}}} \cdot \frac{1 \cos (x) - \sin (x) \cos (x) + 1 \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6

Combina los términos.

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Paso 15.6.1

Multiplica por la recíproca de la fracción para dividir por $\frac{{(1 + \sin (x))}^{\frac{1}{2}}}{{(1 - \sin (x))}^{\frac{1}{2}}}$ .

$1 \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \frac{1 \cos (x) - \sin (x) \cos (x) + 1 \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.2

Multiplica $\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$ por $1$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{1 \cos (x) - \sin (x) \cos (x) + 1 \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.3

Multiplica $\cos (x)$ por $1$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{\cos (x) - \sin (x) \cos (x) + 1 \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.4

Multiplica $\cos (x)$ por $1$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{\cos (x) - \sin (x) \cos (x) + \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.5

Suma $\cos (x)$ y $\cos (x)$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{- \sin (x) \cos (x) + 2 \cos (x) + \sin (x) \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.6

Suma $- \sin (x) \cos (x)$ y $\sin (x) \cos (x)$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{0 + 2 \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.7

Suma $0$ y $2 \cos (x)$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{2 \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.8

Cancela el factor común de $2$ .

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Paso 15.6.8.1

Cancela el factor común.

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{2 \cos (x)}{2 {(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.8.2

Reescribe la expresión.

$\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}} \cdot \frac{\cos (x)}{{(1 - \sin (x))}^{2}} \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.9

Multiplica $\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$ por $\frac{\cos (x)}{{(1 - \sin (x))}^{2}}$ .

$\frac{{(1 - \sin (x))}^{\frac{1}{2}} \cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{2}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.10

Mueve ${(1 - \sin (x))}^{\frac{1}{2}}$ al denominador mediante la regla del exponente negativo $b^{n} = \frac{1}{b^{- n}}$ .

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{2} {(1 - \sin (x))}^{- \frac{1}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11

Multiplica ${(1 - \sin (x))}^{2}$ por ${(1 - \sin (x))}^{- \frac{1}{2}}$ sumando los exponentes.

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Paso 15.6.11.1

Mueve ${(1 - \sin (x))}^{- \frac{1}{2}}$ .

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} ({(1 - \sin (x))}^{- \frac{1}{2}} {(1 - \sin (x))}^{2})} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.2

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{- \frac{1}{2} + 2}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.3

Para escribir $2$ como una fracción con un denominador común, multiplica por $\frac{2}{2}$ .

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{- \frac{1}{2} + 2 \cdot \frac{2}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.4

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

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{- \frac{1}{2} + \frac{2 \cdot 2}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.5

Combina los numeradores sobre el denominador común.

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{- 1 + 2 \cdot 2}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.6

Simplifica el numerador.

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Paso 15.6.11.6.1

Multiplica $2$ por $2$ .

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{- 1 + 4}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.11.6.2

Suma $- 1$ y $4$ .

$\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}}} \cdot \frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.12

Multiplica $\frac{\cos (x)}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}}}$ por $\frac{{(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}}}$ .

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}} {(1 + \sin (x))}^{\frac{1}{2}}}$

Paso 15.6.13

Multiplica ${(1 + \sin (x))}^{\frac{1}{2}}$ por ${(1 + \sin (x))}^{\frac{1}{2}}$ sumando los exponentes.

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Paso 15.6.13.1

Mueve ${(1 + \sin (x))}^{\frac{1}{2}}$ .

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2}} {(1 + \sin (x))}^{\frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.13.2

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1}{2} + \frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.13.3

Combina los numeradores sobre el denominador común.

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{1 + 1}{2}} {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.13.4

Suma $1$ y $1$ .

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{\frac{2}{2}} {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.13.5

Divide $2$ por $2$ .

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{{(1 + \sin (x))}^{1} {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.14

Simplifica ${(1 + \sin (x))}^{1} {(1 - \sin (x))}^{\frac{3}{2}}$ .

$\frac{\cos (x) {(1 - \sin (x))}^{\frac{1}{2}}}{(1 + \sin (x)) {(1 - \sin (x))}^{\frac{3}{2}}}$

Paso 15.6.15

Mueve ${(1 - \sin (x))}^{\frac{1}{2}}$ al denominador mediante la regla del exponente negativo $b^{n} = \frac{1}{b^{- n}}$ .

$\frac{\cos (x)}{(1 + \sin (x)) {(1 - \sin (x))}^{\frac{3}{2}} {(1 - \sin (x))}^{- \frac{1}{2}}}$

Paso 15.6.16

Simplifica el denominador.

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Paso 15.6.16.1

Multiplica ${(1 - \sin (x))}^{\frac{3}{2}}$ por ${(1 - \sin (x))}^{- \frac{1}{2}}$ sumando los exponentes.

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Paso 15.6.16.1.1

Mueve ${(1 - \sin (x))}^{- \frac{1}{2}}$ .

$\frac{\cos (x)}{(1 + \sin (x)) ({(1 - \sin (x))}^{- \frac{1}{2}} {(1 - \sin (x))}^{\frac{3}{2}})}$

Paso 15.6.16.1.2

Usa la regla de la potencia $a^{m} a^{n} = a^{m + n}$ para combinar exponentes.

$\frac{\cos (x)}{(1 + \sin (x)) {(1 - \sin (x))}^{- \frac{1}{2} + \frac{3}{2}}}$

Paso 15.6.16.1.3

Combina los numeradores sobre el denominador común.

$\frac{\cos (x)}{(1 + \sin (x)) {(1 - \sin (x))}^{\frac{- 1 + 3}{2}}}$

Paso 15.6.16.1.4

Suma $- 1$ y $3$ .

$\frac{\cos (x)}{(1 + \sin (x)) {(1 - \sin (x))}^{\frac{2}{2}}}$

Paso 15.6.16.1.5

Divide $2$ por $2$ .

$\frac{\cos (x)}{(1 + \sin (x)) {(1 - \sin (x))}^{1}}$

Paso 15.6.16.2

Simplifica $(1 + \sin (x)) {(1 - \sin (x))}^{1}$ .

$\frac{\cos (x)}{(1 + \sin (x)) (1 - \sin (x))}$