- #1

Dassinia

- 144

- 0

I can't find the result to

## Homework Statement

Have to prove that ∫x/(1+x^n) dx = π/n/sin(2π/n)

so I'm trying to prove that by starting to find :

2πi*res(z/(1+z^n), exp(iπ/n))

but don't know what is res(z/(1+z^n), exp(iπ/n))

Thanks