# Adding restrictive conditions to a limit calculation

1. Jan 28, 2016

### MathematicalPhysicist

I have the following limit to calculate under the assumption that $\Re(x+y)>1$:
Code ( (Unknown Language)):

Limit[Integrate[
1/((1 + t^2)^n*(1 + I*t)^x (1 - I*t)^y), {t, -Infinity, Infinity}],
n -> Infinity]

I want to add the above assumption for integral, how to do it? does it even converge?

Thanks.

2. Feb 2, 2016