Calculus Examples

$\int_{0}^{\frac{π}{2}} \sin^{6} (x) (x) d x$

Step 1

Integrate by parts using the formula $\int u d v = u v - \int v d u$ , where $u = x$ and $d v = \sin^{6} (x)$ .

$x (- \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x))]_{0}^{\frac{π}{2}} - \int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x) d x$

Step 2

Simplify.

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Step 2.1

Combine $\sin (2 x)$ and $\frac{1}{4}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x))]_{0}^{\frac{π}{2}} - \int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x) d x$

Step 2.2

Combine $\frac{1}{48}$ and $\sin^{3} (2 x)$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5}{16} x + \frac{3}{64} \sin (4 x))]_{0}^{\frac{π}{2}} - \int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x) d x$

Step 2.3

Combine $\frac{5}{16}$ and $x$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3}{64} \sin (4 x))]_{0}^{\frac{π}{2}} - \int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x) d x$

Step 2.4

Combine $\frac{3}{64}$ and $\sin (4 x)$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - \int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) + \frac{1}{48} \sin^{3} (2 x) + \frac{5}{16} x + \frac{3}{64} \sin (4 x) d x$

Step 3

Split the single integral into multiple integrals.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (\int_{0}^{\frac{π}{2}} - \frac{1}{4} \sin (2 x) d x + \int_{0}^{\frac{π}{2}} \frac{1}{48} \sin^{3} (2 x) d x + \int_{0}^{\frac{π}{2}} \frac{5}{16} x d x + \int_{0}^{\frac{π}{2}} \frac{3}{64} \sin (4 x) d x)$

Step 4

Simplify.

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Step 4.1

Combine $\sin (2 x)$ and $\frac{1}{4}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (\int_{0}^{\frac{π}{2}} - \frac{\sin (2 x)}{4} d x + \int_{0}^{\frac{π}{2}} \frac{1}{48} \sin^{3} (2 x) d x + \int_{0}^{\frac{π}{2}} \frac{5}{16} x d x + \int_{0}^{\frac{π}{2}} \frac{3}{64} \sin (4 x) d x)$

Step 4.2

Combine $\frac{1}{48}$ and $\sin^{3} (2 x)$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (\int_{0}^{\frac{π}{2}} - \frac{\sin (2 x)}{4} d x + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5}{16} x d x + \int_{0}^{\frac{π}{2}} \frac{3}{64} \sin (4 x) d x)$

Step 4.3

Combine $\frac{5}{16}$ and $x$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (\int_{0}^{\frac{π}{2}} - \frac{\sin (2 x)}{4} d x + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3}{64} \sin (4 x) d x)$

Step 4.4

Combine $\frac{3}{64}$ and $\sin (4 x)$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (\int_{0}^{\frac{π}{2}} - \frac{\sin (2 x)}{4} d x + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 5

Since $- 1$ is constant with respect to $x$ , move $- 1$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \int_{0}^{\frac{π}{2}} \frac{\sin (2 x)}{4} d x + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 6

Since $\frac{1}{4}$ is constant with respect to $x$ , move $\frac{1}{4}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- (\frac{1}{4} \int_{0}^{\frac{π}{2}} \sin (2 x) d x) + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 7

Let $u_{1} = 2 x$ . Then $d u_{1} = 2 d x$ , so $\frac{1}{2} d u_{1} = d x$ . Rewrite using $u_{1}$ and $d$ $u_{1}$ .

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Step 7.1

Let $u_{1} = 2 x$ . Find $\frac{d u_{1}}{d x}$ .

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Step 7.1.1

Differentiate $2 x$ .

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

Step 7.1.2

Since $2$ is constant with respect to $x$ , the derivative of $2 x$ with respect to $x$ is $2 \frac{d}{d x} [x]$ .

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

Step 7.1.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$2 \cdot 1$

Step 7.1.4

Multiply $2$ by $1$ .

$2$

Step 7.2

Substitute the lower limit in for $x$ in $u_{1} = 2 x$ .

$u_{lower} = 2 \cdot 0$

Step 7.3

Multiply $2$ by $0$ .

$u_{lower} = 0$

Step 7.4

Substitute the upper limit in for $x$ in $u_{1} = 2 x$ .

$u_{upper} = 2 \frac{π}{2}$

Step 7.5

Cancel the common factor of $2$ .

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Step 7.5.1

Cancel the common factor.

$u_{upper} = 2 \frac{π}{2}$

Step 7.5.2

Rewrite the expression.

$u_{upper} = π$

Step 7.6

The values found for $u_{lower}$ and $u_{upper}$ will be used to evaluate the definite integral.

$u_{lower} = 0$

$u_{upper} = π$

Step 7.7

Rewrite the problem using $u_{1}$ , $d u_{1}$ , and the new limits of integration.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{4} \int_{0}^{π} \sin (u_{1}) \frac{1}{2} d u_{1} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 8

Combine $\sin (u_{1})$ and $\frac{1}{2}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{4} \int_{0}^{π} \frac{\sin (u_{1})}{2} d u_{1} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 9

Since $\frac{1}{2}$ is constant with respect to $u_{1}$ , move $\frac{1}{2}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{4} (\frac{1}{2} \int_{0}^{π} \sin (u_{1}) d u_{1}) + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 10

Simplify.

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Step 10.1

Multiply $\frac{1}{2}$ by $\frac{1}{4}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{2 \cdot 4} \int_{0}^{π} \sin (u_{1}) d u_{1} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 10.2

Multiply $2$ by $4$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{8} \int_{0}^{π} \sin (u_{1}) d u_{1} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 11

The integral of $\sin (u_{1})$ with respect to $u_{1}$ is $- \cos (u_{1})$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{1}{8} - \cos (u_{1})]_{0}^{π} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 12

Combine $- \cos (u_{1})]_{0}^{π}$ and $\frac{1}{8}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \int_{0}^{\frac{π}{2}} \frac{\sin^{3} (2 x)}{48} d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 13

Since $\frac{1}{48}$ is constant with respect to $x$ , move $\frac{1}{48}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{48} \int_{0}^{\frac{π}{2}} \sin^{3} (2 x) d x + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 14

Let $u_{2} = 2 x$ . Then $d u_{2} = 2 d x$ , so $\frac{1}{2} d u_{2} = d x$ . Rewrite using $u_{2}$ and $d$ $u_{2}$ .

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Step 14.1

Let $u_{2} = 2 x$ . Find $\frac{d u_{2}}{d x}$ .

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Step 14.1.1

Differentiate $2 x$ .

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

Step 14.1.2

Since $2$ is constant with respect to $x$ , the derivative of $2 x$ with respect to $x$ is $2 \frac{d}{d x} [x]$ .

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

Step 14.1.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$2 \cdot 1$

Step 14.1.4

Multiply $2$ by $1$ .

$2$

Step 14.2

Substitute the lower limit in for $x$ in $u_{2} = 2 x$ .

$u_{lower} = 2 \cdot 0$

Step 14.3

Multiply $2$ by $0$ .

$u_{lower} = 0$

Step 14.4

Substitute the upper limit in for $x$ in $u_{2} = 2 x$ .

$u_{upper} = 2 \frac{π}{2}$

Step 14.5

Cancel the common factor of $2$ .

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Step 14.5.1

Cancel the common factor.

$u_{upper} = 2 \frac{π}{2}$

Step 14.5.2

Rewrite the expression.

$u_{upper} = π$

Step 14.6

The values found for $u_{lower}$ and $u_{upper}$ will be used to evaluate the definite integral.

$u_{lower} = 0$

$u_{upper} = π$

Step 14.7

Rewrite the problem using $u_{2}$ , $d u_{2}$ , and the new limits of integration.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{48} \int_{0}^{π} \sin^{3} (u_{2}) \frac{1}{2} d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 15

Combine $\sin^{3} (u_{2})$ and $\frac{1}{2}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{48} \int_{0}^{π} \frac{\sin^{3} (u_{2})}{2} d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 16

Since $\frac{1}{2}$ is constant with respect to $u_{2}$ , move $\frac{1}{2}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{48} (\frac{1}{2} \int_{0}^{π} \sin^{3} (u_{2}) d u_{2}) + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 17

Simplify.

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Step 17.1

Multiply $\frac{1}{2}$ by $\frac{1}{48}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{2 \cdot 48} \int_{0}^{π} \sin^{3} (u_{2}) d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 17.2

Multiply $2$ by $48$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} \int_{0}^{π} \sin^{3} (u_{2}) d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 18

Factor out $\sin^{2} (u_{2})$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} \int_{0}^{π} \sin^{2} (u_{2}) \sin (u_{2}) d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 19

Using the Pythagorean Identity, rewrite $\sin^{2} (u_{2})$ as $1 - \cos^{2} (u_{2})$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} \int_{0}^{π} (1 - \cos^{2} (u_{2})) \sin (u_{2}) d u_{2} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 20

Let $u_{3} = \cos (u_{2})$ . Then $d u_{3} = - \sin (u_{2}) d u_{2}$ , so $- \frac{1}{\sin (u_{2})} d u_{3} = d u_{2}$ . Rewrite using $u_{3}$ and $d$ $u_{3}$ .

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Step 20.1

Let $u_{3} = \cos (u_{2})$ . Find $\frac{d u_{3}}{d u_{2}}$ .

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Step 20.1.1

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

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

Step 20.1.2

The derivative of $\cos (u_{2})$ with respect to $u_{2}$ is $- \sin (u_{2})$ .

$- \sin (u_{2})$

Step 20.2

Substitute the lower limit in for $u_{2}$ in $u_{3} = \cos (u_{2})$ .

$u_{lower} = \cos (0)$

Step 20.3

The exact value of $\cos (0)$ is $1$ .

$u_{lower} = 1$

Step 20.4

Substitute the upper limit in for $u_{2}$ in $u_{3} = \cos (u_{2})$ .

$u_{upper} = \cos (π)$

Step 20.5

Simplify.

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Step 20.5.1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the second quadrant.

$u_{upper} = - \cos (0)$

Step 20.5.2

The exact value of $\cos (0)$ is $1$ .

$u_{upper} = - 1 \cdot 1$

Step 20.5.3

Multiply $- 1$ by $1$ .

$u_{upper} = - 1$

Step 20.6

The values found for $u_{lower}$ and $u_{upper}$ will be used to evaluate the definite integral.

$u_{lower} = 1$

$u_{upper} = - 1$

Step 20.7

Rewrite the problem using $u_{3}$ , $d u_{3}$ , and the new limits of integration.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} \int_{1}^{- 1} - 1 + {u_{3}}^{2} d u_{3} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 21

Split the single integral into multiple integrals.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} (\int_{1}^{- 1} - 1 d u_{3} + \int_{1}^{- 1} {u_{3}}^{2} d u_{3}) + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 22

Apply the constant rule.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} (- u_{3}]_{1}^{- 1} + \int_{1}^{- 1} {u_{3}}^{2} d u_{3}) + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 23

By the Power Rule, the integral of ${u_{3}}^{2}$ with respect to $u_{3}$ is $\frac{1}{3} {u_{3}}^{3}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} (- u_{3}]_{1}^{- 1} + \frac{1}{3} {u_{3}}^{3}]_{1}^{- 1}) + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 24

Simplify.

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Step 24.1

Combine $- u_{3}]_{1}^{- 1}$ and $\frac{1}{3} {u_{3}}^{3}]_{1}^{- 1}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} - u_{3} + \frac{1}{3} {u_{3}}^{3}]_{1}^{- 1} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 24.2

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

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{1}{96} - u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 24.3

Combine $\frac{1}{96}$ and $- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}}{96} + \int_{0}^{\frac{π}{2}} \frac{5 x}{16} d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 25

Since $\frac{5}{16}$ is constant with respect to $x$ , move $\frac{5}{16}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}}{96} + \frac{5}{16} \int_{0}^{\frac{π}{2}} x d x + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 26

By the Power Rule, the integral of $x$ with respect to $x$ is $\frac{1}{2} x^{2}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}}{96} + \frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27

Simplify.

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Step 27.1

To write $\frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}}$ as a fraction with a common denominator, multiply by $\frac{96}{96}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}}{96} + \frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}} \cdot \frac{96}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.2

Combine $\frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}}$ and $\frac{96}{96}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1}}{96} + \frac{\frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}} \cdot 96}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.3

Combine the numerators over the common denominator.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{5}{16} \frac{1}{2} x^{2}]_{0}^{\frac{π}{2}} \cdot 96}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.4

Combine $\frac{1}{2}$ and $x^{2}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{5}{16} \frac{x^{2}}{2}]_{0}^{\frac{π}{2}} \cdot 96}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.5

Combine $\frac{5}{16}$ and $\frac{x^{2}}{2}]_{0}^{\frac{π}{2}}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{5 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{16} \cdot 96}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.6

Combine $\frac{5 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{16}$ and $96$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{5 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}}) \cdot 96}{16}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.7

Multiply $96$ by $5$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{480 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{16}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.8

Cancel the common factor of $480$ and $16$ .

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Step 27.8.1

Factor $16$ out of $480 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{16 (30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}}))}{16}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.8.2

Cancel the common factors.

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Step 27.8.2.1

Factor $16$ out of $16$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{16 (30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}}))}{16 (1)}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.8.2.2

Cancel the common factor.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{16 (30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}}))}{16 \cdot 1}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.8.2.3

Rewrite the expression.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + \frac{30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{1}}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 27.8.2.4

Divide $30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})$ by $1$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \int_{0}^{\frac{π}{2}} \frac{3 \sin (4 x)}{64} d x)$

Step 28

Since $\frac{3}{64}$ is constant with respect to $x$ , move $\frac{3}{64}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{64} \int_{0}^{\frac{π}{2}} \sin (4 x) d x)$

Step 29

Let $u_{4} = 4 x$ . Then $d u_{4} = 4 d x$ , so $\frac{1}{4} d u_{4} = d x$ . Rewrite using $u_{4}$ and $d$ $u_{4}$ .

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Step 29.1

Let $u_{4} = 4 x$ . Find $\frac{d u_{4}}{d x}$ .

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Step 29.1.1

Differentiate $4 x$ .

$\frac{d}{d x} [4 x]$

Step 29.1.2

Since $4$ is constant with respect to $x$ , the derivative of $4 x$ with respect to $x$ is $4 \frac{d}{d x} [x]$ .

$4 \frac{d}{d x} [x]$

Step 29.1.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$4 \cdot 1$

Step 29.1.4

Multiply $4$ by $1$ .

$4$

Step 29.2

Substitute the lower limit in for $x$ in $u_{4} = 4 x$ .

$u_{lower} = 4 \cdot 0$

Step 29.3

Multiply $4$ by $0$ .

$u_{lower} = 0$

Step 29.4

Substitute the upper limit in for $x$ in $u_{4} = 4 x$ .

$u_{upper} = 4 \frac{π}{2}$

Step 29.5

Cancel the common factor of $2$ .

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Step 29.5.1

Factor $2$ out of $4$ .

$u_{upper} = 2 (2) \frac{π}{2}$

Step 29.5.2

Cancel the common factor.

$u_{upper} = 2 \cdot 2 \frac{π}{2}$

Step 29.5.3

Rewrite the expression.

$u_{upper} = 2 π$

Step 29.6

The values found for $u_{lower}$ and $u_{upper}$ will be used to evaluate the definite integral.

$u_{lower} = 0$

$u_{upper} = 2 π$

Step 29.7

Rewrite the problem using $u_{4}$ , $d u_{4}$ , and the new limits of integration.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{64} \int_{0}^{2 π} \sin (u_{4}) \frac{1}{4} d u_{4})$

Step 30

Combine $\sin (u_{4})$ and $\frac{1}{4}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{64} \int_{0}^{2 π} \frac{\sin (u_{4})}{4} d u_{4})$

Step 31

Since $\frac{1}{4}$ is constant with respect to $u_{4}$ , move $\frac{1}{4}$ out of the integral.

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{64} (\frac{1}{4} \int_{0}^{2 π} \sin (u_{4}) d u_{4}))$

Step 32

Simplify.

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Step 32.1

Multiply $\frac{1}{4}$ by $\frac{3}{64}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{4 \cdot 64} \int_{0}^{2 π} \sin (u_{4}) d u_{4})$

Step 32.2

Multiply $4$ by $64$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{256} \int_{0}^{2 π} \sin (u_{4}) d u_{4})$

Step 33

The integral of $\sin (u_{4})$ with respect to $u_{4}$ is $- \cos (u_{4})$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3}{256} - \cos (u_{4})]_{0}^{2 π})$

Step 34

Combine $\frac{3}{256}$ and $- \cos (u_{4})]_{0}^{2 π}$ .

$x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})]_{0}^{\frac{π}{2}} - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3 (- \cos (u_{4})]_{0}^{2 π})}{256})$

Step 35

Substitute and simplify.

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Step 35.1

Evaluate $x (- \frac{\sin (2 x)}{4} + \frac{\sin^{3} (2 x)}{48} + \frac{5 x}{16} + \frac{3 \sin (4 x)}{64})$ at $\frac{π}{2}$ and at $0$ .

$(\frac{π}{2} (- \frac{\sin (2 \frac{π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64})) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{- \cos (u_{1})]_{0}^{π}}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3 (- \cos (u_{4})]_{0}^{2 π})}{256})$

Step 35.2

Evaluate $- \cos (u_{1})$ at $π$ and at $0$ .

$(\frac{π}{2} (- \frac{\sin (2 \frac{π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64})) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{- u_{3} + \frac{{u_{3}}^{3}}{3}]_{1}^{- 1} + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3 (- \cos (u_{4})]_{0}^{2 π})}{256})$

Step 35.3

Evaluate $- u_{3} + \frac{{u_{3}}^{3}}{3}$ at $- 1$ and at $1$ .

$(\frac{π}{2} (- \frac{\sin (2 \frac{π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64})) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 (\frac{x^{2}}{2}]_{0}^{\frac{π}{2}})}{96} + \frac{3 (- \cos (u_{4})]_{0}^{2 π})}{256})$

Step 35.4

Evaluate $\frac{x^{2}}{2}$ at $\frac{π}{2}$ and at $0$ .

$(\frac{π}{2} (- \frac{\sin (2 \frac{π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64})) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 (- \cos (u_{4})]_{0}^{2 π})}{256})$

Step 35.5

Evaluate $- \cos (u_{4})$ at $2 π$ and at $0$ .

$(\frac{π}{2} (- \frac{\sin (2 \frac{π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64})) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6

Simplify.

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Step 35.6.1

Combine $2$ and $\frac{π}{2}$ .

$\frac{π}{2} (- \frac{\sin (\frac{2 π}{2})}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.2

Cancel the common factor of $2$ .

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Step 35.6.2.1

Cancel the common factor.

Step 35.6.2.2

Divide $π$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (2 \frac{π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.3

Combine $2$ and $\frac{π}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (\frac{2 π}{2})}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.4

Cancel the common factor of $2$ .

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Step 35.6.4.1

Cancel the common factor.

Step 35.6.4.2

Divide $π$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 \frac{π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.5

Combine $5$ and $\frac{π}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{\frac{5 π}{2}}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.6

Rewrite $\frac{\frac{5 π}{2}}{16}$ as a product.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{2} \cdot \frac{1}{16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.7

Multiply $\frac{5 π}{2}$ by $\frac{1}{16}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{2 \cdot 16} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.8

Multiply $2$ by $16$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (4 \frac{π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.9

Combine $4$ and $\frac{π}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (\frac{4 π}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.10

Cancel the common factor of $4$ and $2$ .

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Step 35.6.10.1

Factor $2$ out of $4 π$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (\frac{2 (2 π)}{2})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.10.2

Cancel the common factors.

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Step 35.6.10.2.1

Factor $2$ out of $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (\frac{2 (2 π)}{2 (1)})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.10.2.2

Cancel the common factor.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (\frac{2 (2 π)}{2 \cdot 1})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.10.2.3

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (\frac{2 π}{1})}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.10.2.4

Divide $2 π$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (2 \cdot 0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.11

Multiply $2$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (0)}{4} + \frac{\sin^{3} (2 \cdot 0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.12

Multiply $2$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (0)}{4} + \frac{\sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.13

To write $- \frac{\sin (0)}{4}$ as a fraction with a common denominator, multiply by $\frac{12}{12}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (0)}{4} \cdot \frac{12}{12} + \frac{\sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.14

Write each expression with a common denominator of $48$ , by multiplying each by an appropriate factor of $1$ .

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Step 35.6.14.1

Multiply $\frac{\sin (0)}{4}$ by $\frac{12}{12}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (0) \cdot 12}{4 \cdot 12} + \frac{\sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.14.2

Multiply $4$ by $12$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (- \frac{\sin (0) \cdot 12}{48} + \frac{\sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.15

Combine the numerators over the common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{- \sin (0) \cdot 12 + \sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16

Simplify the numerator.

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Step 35.6.16.1

Evaluate $\sin (0)$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{- 0 \cdot 12 + \sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16.2

Multiply $- 1$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0 \cdot 12 + \sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16.3

Multiply $0$ by $12$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0 + \sin^{3} (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16.4

Evaluate $\sin (0)$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0 + 0^{3}}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16.5

Raise $0$ to the power of $3$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0 + 0}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.16.6

Add $0$ and $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.17

Cancel the common factor of $0$ and $48$ .

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Step 35.6.17.1

Factor $48$ out of $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{48 (0)}{48} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.17.2

Cancel the common factors.

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Step 35.6.17.2.1

Factor $48$ out of $48$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{48 \cdot 0}{48 \cdot 1} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.17.2.2

Cancel the common factor.

Step 35.6.17.2.3

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (\frac{0}{1} + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.17.2.4

Divide $0$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{5 \cdot 0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.18

Multiply $5$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{0}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.19

Cancel the common factor of $0$ and $16$ .

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Step 35.6.19.1

Factor $16$ out of $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{16 (0)}{16} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.19.2

Cancel the common factors.

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Step 35.6.19.2.1

Factor $16$ out of $16$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{16 \cdot 0}{16 \cdot 1} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.19.2.2

Cancel the common factor.

Step 35.6.19.2.3

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{0}{1} + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.19.2.4

Divide $0$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + 0 + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.20

Add $0$ and $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{3 \sin (4 \cdot 0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.21

Multiply $4$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 (0 + \frac{3 \sin (0)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.22

Add $0$ and $\frac{3 \sin (0)}{64}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 \frac{3 \sin (0)}{64} - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.23

Multiply $0$ by $\frac{3 \sin (0)}{64}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) + 0 - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.24

Add $\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64})$ and $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{(- \cos (π)) + \cos (0)}{8} + \frac{(- - 1 + \frac{{(- 1)}^{3}}{3}) - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.25

Multiply $- 1$ by $- 1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{1 + \frac{{(- 1)}^{3}}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.26

Raise $- 1$ to the power of $3$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{1 + \frac{- 1}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.27

Move the negative in front of the fraction.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{1 - \frac{1}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.28

Write $1$ as a fraction with a common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{3}{3} - \frac{1}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.29

Combine the numerators over the common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{3 - 1}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.30

Subtract $1$ from $3$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - (- 1 \cdot 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.31

Multiply $- 1$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - (- 1 + \frac{1^{3}}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.32

One to any power is one.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - (- 1 + \frac{1}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.33

To write $- 1$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - (- 1 \cdot \frac{3}{3} + \frac{1}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.34

Combine $- 1$ and $\frac{3}{3}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - (\frac{- 1 \cdot 3}{3} + \frac{1}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.35

Combine the numerators over the common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - \frac{- 1 \cdot 3 + 1}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.36

Simplify the numerator.

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Step 35.6.36.1

Multiply $- 1$ by $3$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - \frac{- 3 + 1}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.36.2

Add $- 3$ and $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - \frac{- 2}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.37

Move the negative in front of the fraction.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} - - \frac{2}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.38

Multiply $- 1$ by $- 1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} + 1 (\frac{2}{3}) + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.39

Multiply $\frac{2}{3}$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} + \frac{2}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.40

Combine the numerators over the common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2 + 2}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.41

Add $2$ and $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 ((\frac{{(\frac{π}{2})}^{2}}{2}) - \frac{0^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.42

Raising $0$ to any positive power yields $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - \frac{0}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.43

Cancel the common factor of $0$ and $2$ .

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Step 35.6.43.1

Factor $2$ out of $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - \frac{2 (0)}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.43.2

Cancel the common factors.

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Step 35.6.43.2.1

Factor $2$ out of $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - \frac{2 \cdot 0}{2 \cdot 1})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.43.2.2

Cancel the common factor.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - \frac{2 \cdot 0}{2 \cdot 1})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.43.2.3

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - \frac{0}{1})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.43.2.4

Divide $0$ by $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} - 0)}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.44

Multiply $- 1$ by $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 (\frac{{(\frac{π}{2})}^{2}}{2} + 0)}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.45

Add $\frac{{(\frac{π}{2})}^{2}}{2}$ and $0$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{4}{3} + 30 \frac{{(\frac{π}{2})}^{2}}{2}}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.46

Cancel the common factor of $\frac{4}{3} + 30 \frac{{(\frac{π}{2})}^{2}}{2}$ and $96$ .

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Step 35.6.46.1

Factor $2$ out of $\frac{4}{3}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 (\frac{2}{3}) + 30 \frac{{(\frac{π}{2})}^{2}}{2}}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.46.2

Factor $2$ out of $30 \frac{{(\frac{π}{2})}^{2}}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 (\frac{2}{3}) + 2 (15 \frac{{(\frac{π}{2})}^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.46.3

Factor $2$ out of $2 (\frac{2}{3}) + 2 (15 \frac{{(\frac{π}{2})}^{2}}{2})$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 (\frac{2}{3} + 15 \frac{{(\frac{π}{2})}^{2}}{2})}{96} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.46.4

Cancel the common factors.

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Step 35.6.46.4.1

Factor $2$ out of $96$ .

Step 35.6.46.4.2

Cancel the common factor.

Step 35.6.46.4.3

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{\frac{2}{3} + 15 \frac{{(\frac{π}{2})}^{2}}{2}}{48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.47

Multiply $\frac{\frac{2}{3} + 15 \frac{{(\frac{π}{2})}^{2}}{2}}{48}$ by $\frac{3}{3}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{3}{3} \cdot \frac{\frac{2}{3} + 15 \frac{{(\frac{π}{2})}^{2}}{2}}{48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.48

Combine.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{3 (\frac{2}{3} + 15 \frac{{(\frac{π}{2})}^{2}}{2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.49

Apply the distributive property.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{3 (\frac{2}{3}) + 3 (15 \frac{{(\frac{π}{2})}^{2}}{2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.50

Cancel the common factor of $3$ .

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Step 35.6.50.1

Cancel the common factor.

Step 35.6.50.2

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 \frac{{(\frac{π}{2})}^{2}}{2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.51

Simplify the numerator.

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Step 35.6.51.1

Apply the product rule to $\frac{π}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 \frac{\frac{π^{2}}{2^{2}}}{2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.51.2

Raise $2$ to the power of $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 \frac{\frac{π^{2}}{4}}{2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.52

Rewrite $\frac{\frac{π^{2}}{4}}{2}$ as a product.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 (\frac{π^{2}}{4} \cdot \frac{1}{2}))}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.53

Multiply $\frac{π^{2}}{4}$ by $\frac{1}{2}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 \frac{π^{2}}{4 \cdot 2})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.54

Multiply $4$ by $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 (15 \frac{π^{2}}{8})}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.55

Combine $15$ and $\frac{π^{2}}{8}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + 3 \frac{15 π^{2}}{8}}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.56

Combine $3$ and $\frac{15 π^{2}}{8}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + \frac{3 (15 π^{2})}{8}}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.57

Multiply $15$ by $3$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + \frac{45 π^{2}}{8}}{3 \cdot 48} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.58

Multiply $3$ by $48$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{2 + \frac{45 π^{2}}{8}}{144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.59

Multiply $\frac{2 + \frac{45 π^{2}}{8}}{144}$ by $\frac{8}{8}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{8}{8} \cdot \frac{2 + \frac{45 π^{2}}{8}}{144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.60

Combine.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{8 (2 + \frac{45 π^{2}}{8})}{8 \cdot 144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.61

Apply the distributive property.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{8 \cdot 2 + 8 \frac{45 π^{2}}{8}}{8 \cdot 144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.62

Cancel the common factor of $8$ .

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Step 35.6.62.1

Cancel the common factor.

Step 35.6.62.2

Rewrite the expression.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{8 \cdot 2 + 45 π^{2}}{8 \cdot 144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.63

Multiply $8$ by $2$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{16 + 45 π^{2}}{8 \cdot 144} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.64

Multiply $8$ by $144$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} + \frac{16 + 45 π^{2}}{1152} + \frac{3 ((- \cos (2 π)) + \cos (0))}{256})$

Step 35.6.65

To write $- \frac{- \cos (π) + \cos (0)}{8}$ as a fraction with a common denominator, multiply by $\frac{32}{32}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{- \cos (π) + \cos (0)}{8} \cdot \frac{32}{32} + \frac{3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 35.6.66

Write each expression with a common denominator of $256$ , by multiplying each by an appropriate factor of $1$ .

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Step 35.6.66.1

Multiply $\frac{- \cos (π) + \cos (0)}{8}$ by $\frac{32}{32}$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{(- \cos (π) + \cos (0)) \cdot 32}{8 \cdot 32} + \frac{3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 35.6.66.2

Multiply $8$ by $32$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (- \frac{(- \cos (π) + \cos (0)) \cdot 32}{256} + \frac{3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 35.6.67

Combine the numerators over the common denominator.

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- (- \cos (π) + \cos (0)) \cdot 32 + 3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 35.6.68

Multiply $32$ by $- 1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + \cos (0)) + 3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 36

Simplify.

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Step 36.1

The exact value of $\cos (0)$ is $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + \cos (0))}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 36.2

The exact value of $\cos (0)$ is $1$ .

$\frac{π}{2} (- \frac{\sin (π)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37

Simplify.

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Step 37.1

Simplify the numerator.

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Step 37.1.1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

$\frac{π}{2} (- \frac{\sin (0)}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.1.2

The exact value of $\sin (0)$ is $0$ .

$\frac{π}{2} (- \frac{0}{4} + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.2

Divide $0$ by $4$ .

$\frac{π}{2} (- 0 + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.3

Multiply $- 1$ by $0$ .

$\frac{π}{2} (0 + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (2 π)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.4

Subtract full rotations of $2 π$ until the angle is greater than or equal to $0$ and less than $2 π$ .

$\frac{π}{2} (0 + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \sin (0)}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.5

The exact value of $\sin (0)$ is $0$ .

$\frac{π}{2} (0 + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{3 \cdot 0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.6

Multiply $3$ by $0$ .

$\frac{π}{2} (0 + \frac{\sin^{3} (π)}{48} + \frac{5 π}{32} + \frac{0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.7

Simplify each term.

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Step 37.7.1

Simplify the numerator.

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Step 37.7.1.1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

$\frac{π}{2} (0 + \frac{\sin^{3} (0)}{48} + \frac{5 π}{32} + \frac{0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.7.1.2

The exact value of $\sin (0)$ is $0$ .

$\frac{π}{2} (0 + \frac{0^{3}}{48} + \frac{5 π}{32} + \frac{0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.7.1.3

Raising $0$ to any positive power yields $0$ .

$\frac{π}{2} (0 + \frac{0}{48} + \frac{5 π}{32} + \frac{0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.7.2

Divide $0$ by $48$ .

$\frac{π}{2} (0 + 0 + \frac{5 π}{32} + \frac{0}{64}) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.7.3

Divide $0$ by $64$ .

$\frac{π}{2} (0 + 0 + \frac{5 π}{32} + 0) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.8

Add $0$ and $0$ .

$\frac{π}{2} (0 + \frac{5 π}{32} + 0) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.9

Add $0$ and $\frac{5 π}{32}$ .

$\frac{π}{2} (\frac{5 π}{32} + 0) - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.10

Add $\frac{5 π}{32}$ and $0$ .

$\frac{π}{2} \cdot \frac{5 π}{32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11

Multiply $\frac{π}{2} \cdot \frac{5 π}{32}$ .

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Step 37.11.1

Multiply $\frac{π}{2}$ by $\frac{5 π}{32}$ .

$\frac{π (5 π)}{2 \cdot 32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11.2

Raise $π$ to the power of $1$ .

$\frac{5 (π^{1} π)}{2 \cdot 32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11.3

Raise $π$ to the power of $1$ .

$\frac{5 (π^{1} π^{1})}{2 \cdot 32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{5 π^{1 + 1}}{2 \cdot 32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11.5

Add $1$ and $1$ .

$\frac{5 π^{2}}{2 \cdot 32} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.11.6

Multiply $2$ by $32$ .

$\frac{5 π^{2}}{64} - (\frac{- 32 (- \cos (π) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.12

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the second quadrant.

$\frac{5 π^{2}}{64} - (\frac{- 32 (- - \cos (0) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.13

The exact value of $\cos (0)$ is $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 32 (- (- 1 \cdot 1) + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.14

Multiply $- 1$ by $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 32 (- - 1 + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.15

Multiply $- 1$ by $- 1$ .

$\frac{5 π^{2}}{64} - (\frac{- 32 (1 + 1) + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.16

Add $1$ and $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 32 \cdot 2 + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.17

Multiply $- 32$ by $2$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 3 (- \cos (2 π) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.18

Subtract full rotations of $2 π$ until the angle is greater than or equal to $0$ and less than $2 π$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 3 (- \cos (0) + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.19

The exact value of $\cos (0)$ is $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 3 (- 1 \cdot 1 + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.20

Multiply $- 1$ by $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 3 (- 1 + 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.21

Add $- 1$ and $1$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 3 \cdot 0}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.22

Multiply $3$ by $0$ .

$\frac{5 π^{2}}{64} - (\frac{- 64 + 0}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.23

Add $- 64$ and $0$ .

$\frac{5 π^{2}}{64} - (\frac{- 64}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.24

Simplify each term.

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Step 37.24.1

Cancel the common factor of $- 64$ and $256$ .

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Step 37.24.1.1

Factor $64$ out of $- 64$ .

$\frac{5 π^{2}}{64} - (\frac{64 (- 1)}{256} + \frac{16 + 45 π^{2}}{1152})$

Step 37.24.1.2

Cancel the common factors.

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Step 37.24.1.2.1

Factor $64$ out of $256$ .

$\frac{5 π^{2}}{64} - (\frac{64 \cdot - 1}{64 \cdot 4} + \frac{16 + 45 π^{2}}{1152})$

Step 37.24.1.2.2

Cancel the common factor.

$\frac{5 π^{2}}{64} - (\frac{64 \cdot - 1}{64 \cdot 4} + \frac{16 + 45 π^{2}}{1152})$

Step 37.24.1.2.3

Rewrite the expression.

$\frac{5 π^{2}}{64} - (\frac{- 1}{4} + \frac{16 + 45 π^{2}}{1152})$

Step 37.24.2

Move the negative in front of the fraction.

$\frac{5 π^{2}}{64} - (- \frac{1}{4} + \frac{16 + 45 π^{2}}{1152})$

Step 37.25

To write $- \frac{1}{4}$ as a fraction with a common denominator, multiply by $\frac{288}{288}$ .

$\frac{5 π^{2}}{64} - (- \frac{1}{4} \cdot \frac{288}{288} + \frac{16 + 45 π^{2}}{1152})$

Step 37.26

Write each expression with a common denominator of $1152$ , by multiplying each by an appropriate factor of $1$ .

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Step 37.26.1

Multiply $\frac{1}{4}$ by $\frac{288}{288}$ .

$\frac{5 π^{2}}{64} - (- \frac{288}{4 \cdot 288} + \frac{16 + 45 π^{2}}{1152})$

Step 37.26.2

Multiply $4$ by $288$ .

$\frac{5 π^{2}}{64} - (- \frac{288}{1152} + \frac{16 + 45 π^{2}}{1152})$

Step 37.27

Combine the numerators over the common denominator.

$\frac{5 π^{2}}{64} - \frac{- 288 + 16 + 45 π^{2}}{1152}$

Step 37.28

Add $- 288$ and $16$ .

$\frac{5 π^{2}}{64} - \frac{- 272 + 45 π^{2}}{1152}$

Step 37.29

To write $\frac{5 π^{2}}{64}$ as a fraction with a common denominator, multiply by $\frac{18}{18}$ .

$\frac{5 π^{2}}{64} \cdot \frac{18}{18} - \frac{- 272 + 45 π^{2}}{1152}$

Step 37.30

Write each expression with a common denominator of $1152$ , by multiplying each by an appropriate factor of $1$ .

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Step 37.30.1

Multiply $\frac{5 π^{2}}{64}$ by $\frac{18}{18}$ .

$\frac{5 π^{2} \cdot 18}{64 \cdot 18} - \frac{- 272 + 45 π^{2}}{1152}$

Step 37.30.2

Multiply $64$ by $18$ .

$\frac{5 π^{2} \cdot 18}{1152} - \frac{- 272 + 45 π^{2}}{1152}$

Step 37.31

Combine the numerators over the common denominator.

$\frac{5 π^{2} \cdot 18 - (- 272 + 45 π^{2})}{1152}$

Step 37.32

Multiply $18$ by $5$ .

$\frac{90 π^{2} - (- 272 + 45 π^{2})}{1152}$

Step 38

Simplify the numerator.

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Step 38.1

Apply the distributive property.

$\frac{90 π^{2} - - 272 - (45 π^{2})}{1152}$

Step 38.2

Multiply $- 1$ by $- 272$ .

$\frac{90 π^{2} + 272 - (45 π^{2})}{1152}$

Step 38.3

Multiply $45$ by $- 1$ .

$\frac{90 π^{2} + 272 - 45 π^{2}}{1152}$

Step 38.4

Subtract $45 π^{2}$ from $90 π^{2}$ .

$\frac{45 π^{2} + 272}{1152}$

Step 39

The result can be shown in multiple forms.

Exact Form:

$\frac{45 π^{2} + 272}{1152}$

Decimal Form:

$0.62164253 \dots$