(adsbygoogle = window.adsbygoogle || []).push({}); fourier series, please help!!!

1. The problem statement, all variables and given/known data

Find the fourier series of f(x)=(sin x)^2.

2. Relevant equations

3. The attempt at a solution

I know that I need to use the double angle formulas for this problem:

(sin x)^2=1/2-1/2(cos 2x)

but I do not know where to go from here.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Fourier series, please help

**Physics Forums | Science Articles, Homework Help, Discussion**