- #1

theRukus

- 49

- 0

## Homework Statement

I missed one class on trigonometric identities in integrals, and I feel that one is needed here:

[itex]\int^3_0\frac{1+arctan(\frac{x}{3})}{9+x^2}dx[/itex]

## Homework Equations

## The Attempt at a Solution

Again, I'm unsure what to do. I think that it is a trig identity, but I could be wrong. I'll continue to try parts & substitutions..

Thanks!