1. The problem statement, all variables and given/known data Determine the fourier series for the full-wave rectifier defined as f(t) = sinωt for 0 < ωt < pi -sinωt for -pi < ωt < 0 2. Relevant equations 3. The attempt at a solution This looks like an even function, so bm = 0 Ao = 1/pi∫sinωt from 0 to pi = 1/pi(-cos(ωt))/ω) from 0 to pi = 2/piω An = 2/pi∫sin(ωt)cos(nt) from 0 to pi (because the function is even) =2/pi∫(0.5(sin(ωt-nt)+0.5(sin(ωt+nt)) from 0 to pi =-1/pi(cos(ωt-nt)/(ω-n) + cos(nt+ωt)/(n+ω)) from 0 to pi = -(cos(pi(ω-n))-1)/(n+ω) -(cos(pi(ω+n))-1)/(pi(n+ω)) I'm stuck at this part. I don't know how to simplify those or what that equals to and I've been looking around for a very long time trying to figure it out...any help?