(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hey guys.

So I got this integral I need to solve, of curse using the residue theorem.

The thing is, that I don't understand the curve.

I know that whenever Z^2 = integer, this function has a singularity point because e^(2*pi*i*n) = 1.

But again, I'm not sure what this curve has enclosed in.

Thanks.

2. Relevant equations

3. The attempt at a solution

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# Residue theorem

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