Question

Stuck on an Integration by Parts question...

Answer 1

Here's what I have so far\[\int\limits_{}^{}\csc^3(x)dx\]becomes\[-cscxcotx-\int\limits_{}^{}cscxcot^2(x)\] Any idea where to go from here?

Answer 2

convert the cotangents to cosecants and multiply it out.
then there is a tricky step coming up :)