1. The problem statement, all variables and given/known data evaluate the integral from 0 to e^x of sin(tan^-1(e^(sqrt (x)))dx 2. Relevant equations all trig function such as sin=opp/hypo, cos=adj/hypo, tan oppo/adj 3. The attempt at a solution I believe the integral can be written as the integral from 0 to e^x of (e^sqrt(x))/(sqrt(1+e^(2sqrt(x))). Anyone know how to solve this problem?