What is the integral of 14cot(7x)csc^2(7x) ?

The integral of 14cot(7x)csc^2(7x) is -cot^2(7x)+C

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integral of 14cot(7x)csc^2(7x)

\int 14 cot (7 x) csc^{2} (7 x) d x

- cot^{2} (7 x) + C

Solution steps

\int 14 cot (7 x) csc^{2} (7 x) d x

Take the constant out:

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

= 14 \cdot \int cot (7 x) csc^{2} (7 x) d x

Apply u-substitution

= 14 \cdot \int - \frac{u}{7} d u

Take the constant out:

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

= 14 (- \frac{1}{7} \cdot \int u d u)

Apply the Power Rule

= 14 (- \frac{1}{7} \cdot \frac{u ^{2}}{2})

Substitute back

u = cot (7 x)

= 14 (- \frac{1}{7} \cdot \frac{cot ^{2} ( 7 x )}{2})

Simplify

14 (- \frac{1}{7} \cdot \frac{cot ^{2} ( 7 x )}{2}) : - cot^{2} (7 x)

= - cot^{2} (7 x)

Add a constant to the solution

= - cot^{2} (7 x) + C

What is the integral of 14cot(7x)csc^2(7x) ?
The integral of 14cot(7x)csc^2(7x) is -cot^2(7x)+C