there has to be a slick trick for this one. Manipulate the quotient rule? I'm stuck.

Tried a bunch of different substitutions... then tried this one. If this holds, then it is much closer to the "3 minute solution..." Thx!

Yea... I started down a similar path got to the second line... thought there has to be an easier solution. The competitors only had about 3 mins to solve the integrals :)

Tried a bunch of different substitutions... then tried this one. If this holds, then it is much closer to the "3 minute solution..." Thx!