What is the integral of x^2sin^2(x^3)cos(x^3) ?

The integral of x^2sin^2(x^3)cos(x^3) is 1/9 sin^3(x^3)+C

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integral of x^2sin^2(x^3)cos(x^3)

\int x^{2} sin^{2} (x^{3}) cos (x^{3}) d x

\frac{1}{9} sin^{3} (x^{3}) + C

Solution steps

\int x^{2} sin^{2} (x^{3}) cos (x^{3}) d x

Apply u-substitution

: \int \frac{u sin ^{2} ( u ^{\frac{3}{2}} ) cos ( u ^{\frac{3}{2}} )}{2 x} d u

= \int \frac{sin ^{2} ( u ) cos ( u )}{3} d u

Take the constant out:

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

= \frac{1}{3} \cdot \int sin^{2} (u) cos (u) d u

Apply u-substitution

: \int v^{2} d v

= \frac{1}{3} \cdot \int v^{2} d v

Apply the Power Rule

: \frac{v ^{3}}{3}

= \frac{1}{3} \cdot \frac{v ^{3}}{3}

Substitute back

= \frac{1}{3} \cdot \frac{sin ^{3} ( x ^{3} )}{3}

Simplify

\frac{1}{3} \cdot \frac{sin ^{3} ( x ^{3} )}{3} : \frac{1}{9} sin^{3} (x^{3})

= \frac{1}{9} sin^{3} (x^{3})

Add a constant to the solution

= \frac{1}{9} sin^{3} (x^{3}) + C

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What is the integral of x^2sin^2(x^3)cos(x^3) ?
The integral of x^2sin^2(x^3)cos(x^3) is 1/9 sin^3(x^3)+C