# What is the integral of e^-(x/2) * sin(a*x) dx?

1. Apr 17, 2015

### Emmanuel_Euler

what is the integral of e^-(x/2) * sin(a*x) dx??

2. Apr 17, 2015

### Staff: Mentor

This looks enough like a schoolwork question that it needs to be re-posted in the Homework Help, Calculus & Beyond forum, and you need to show your efforts at working toward a solution.

3. Apr 17, 2015

### HallsofIvy

Do an "integration by parts" twice. Start by letting $u= e^{-x/2}$ and $dv= sin(ax)dx$