1. ## Integrating Fourier Series

I have a problem here where I am told to integrate the following

(all sums are from 1 to infinity)

$x\sim 2\displaystyle \sum \sin(ns)$

2. I am still stuck on this, which seems particularly stupid to me as I could flat out calculate the fourier series in question

can anyone at least tell me if the first integration would result in a fourier series? Because I don't think it does

3. alright guys I got this question