Just set your U substitution with u=sin(x) and that will get you to the end, good luck.
I should know this but I cannot figure it out.
The problem is.
integrate Cot[x]/Sqrt[Sin[x]] dx
I convert the Cot[x] into Cos[x]/Sin[x]
I assume this problem is done by u-substitution. I cant figure out what to set u = ?
Thanks for you help.