Question

What is `int -csc^2x dx`?

Answer 1

`int-cosec^2xdx=cotx+C`

Explanation:

This is a standard form of one of the trigonometric integrals and can be written directly as

`int-cosec^2xdx=-intcosec^xdx=cotx+C`

This is true since `d/dxcotx=-cosec^2x`