# Help with simple integral

1. Oct 31, 2011

### Ry122

Last edited by a moderator: May 5, 2017
2. Oct 31, 2011

### Staff: Mentor

Because it's quite a bit simpler to integrate t sin(at) than to integrate (6 - 3t)sin(at). In both cases you need to use integration by parts, but the simpler integrand makes the process easier.

Last edited by a moderator: May 5, 2017