I got to the part where
I'm not sure how to evaluate arctan to -infinity...
- Wolfram|Alpha[1%2F(x^2%2B9)%2C[x]]
- Wolfram|Alpha[1%2F%28x^2%2B9%29%2C[x%2C-infinity%2C3]]
I got to the part where
I'm not sure how to evaluate arctan to -infinity...
- Wolfram|Alpha[1%2F(x^2%2B9)%2C[x]]
- Wolfram|Alpha[1%2F%28x^2%2B9%29%2C[x%2C-infinity%2C3]]