1. The problem statement, all variables and given/known data Can anyone help me integrating (cosecx)^3 without using integration by parts? 2. Relevant equations 3. The attempt at a solution i couldn't get a clue how to do it,i used fundamental identity but always ended up like [∫(cosecx) dx] + [(∫(cotx)^2 . (cosecx) dx] the left one will be simply reciprocal rule,but what about [(∫(cotx)^2 . (cosecx) dx] ??