What is the integral of csc^2(6x)cot(6x) ?

The integral of csc^2(6x)cot(6x) is -1/12 cot^2(6x)+C

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integral of csc^2(6x)cot(6x)

\int csc^{2} (6 x) cot (6 x) d x

- \frac{1}{12} cot^{2} (6 x) + C

Solution steps

\int csc^{2} (6 x) cot (6 x) d x

Apply u-substitution

: \int - \frac{u}{6} d u

= \int - \frac{u}{6} d u

Take the constant out:

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

= - \frac{1}{6} \cdot \int u d u

Apply the Power Rule

: \frac{u ^{2}}{2}

= - \frac{1}{6} \cdot \frac{u ^{2}}{2}

Substitute back

u = cot (6 x)

= - \frac{1}{6} \cdot \frac{cot ^{2} ( 6 x )}{2}

Simplify

- \frac{1}{6} \cdot \frac{cot ^{2} ( 6 x )}{2} : - \frac{1}{12} cot^{2} (6 x)

= - \frac{1}{12} cot^{2} (6 x)

Add a constant to the solution

= - \frac{1}{12} cot^{2} (6 x) + C

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What is the integral of csc^2(6x)cot(6x) ?
The integral of csc^2(6x)cot(6x) is -1/12 cot^2(6x)+C