Math Help - Calculus help

1. Calculus help

I need to prove that the integral of k/(sin x*sqrt(sin^2x-k^2) dx= arccos(k/sqrt(1-k^2)*(cot x)) and it says to set u= c*cot x

2. Re: Calculus help

Hey sean60630.

Hint: Try getting the sin^2x term out of the square root sign and then look for a cot(x) term.