What is the integral of sin(12x)cos^4(12x) ?

The integral of sin(12x)cos^4(12x) is -1/60 cos^5(12x)+C

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integral of sin(12x)cos^4(12x)

\int sin (12 x) cos^{4} (12 x) d x

- \frac{1}{60} cos^{5} (12 x) + C

Solution steps

\int sin (12 x) cos^{4} (12 x) d x

Apply u-substitution

: \int sin (u) cos^{4} (u) \frac{1}{12} d u

= \int sin (u) cos^{4} (u) \frac{1}{12} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{1}{12} \cdot \int sin (u) cos^{4} (u) d u

Apply u-substitution

: \int - v^{4} d v

= \frac{1}{12} \cdot \int - v^{4} d v

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{1}{12} (- \int v^{4} d v)

Apply the Power Rule

: \frac{v ^{5}}{5}

= \frac{1}{12} (- \frac{v ^{5}}{5})

Substitute back

= \frac{1}{12} (- \frac{cos ^{5} ( 12 x )}{5})

Simplify

\frac{1}{12} (- \frac{cos ^{5} ( 12 x )}{5}) : - \frac{1}{60} cos^{5} (12 x)

= - \frac{1}{60} cos^{5} (12 x)

Add a constant to the solution

= - \frac{1}{60} cos^{5} (12 x) + C

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What is the integral of sin(12x)cos^4(12x) ?
The integral of sin(12x)cos^4(12x) is -1/60 cos^5(12x)+C