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## Homework Statement

integral (t * csc^2 (t) ) dt

## Homework Equations

## The Attempt at a Solution

t * -cot (t) - integral( 1 * -cot (t)) u= t dv= csc^2(t)

du= 1 v= - cot (t)

-t * cot(t) - ??? I don't understand how to find the antiderivative of -cot(t)