What is the integral of-3csc(x)cot(x) ?

The integral of-3csc(x)cot(x) is 3csc(x)+C

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integral of-3csc(x)cot(x)

\int - 3 csc (x) cot (x) d x

3 csc (x) + C

Solution steps

\int - 3 csc (x) cot (x) d x

Take the constant out:

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

= - 3 \cdot \int csc (x) cot (x) d x

Apply u-substitution

: \int - 1 d u

= - 3 \cdot \int - 1 d u

Integral of a constant:

\int a d x = a x

= - 3 (- 1) u

Substitute back

u = csc (x)

= - 3 (- 1) csc (x)

Simplify

= 3 csc (x)

Add a constant to the solution

= 3 csc (x) + C

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What is the integral of-3csc(x)cot(x) ?
The integral of-3csc(x)cot(x) is 3csc(x)+C