Okay, there are two different questions, but are answered the same way (I believe). 1. The problem statement, all variables and given/known data (1)Which function has a derivative equal to ex sin 2x (2)Which function has a derivative equal to tan x * tan 2x * tan 3x 3. The attempt at a solution I thought (since the teacher said to not use integrals) to try and solve it as an inverse function. Is this a good way to go about the problem?