1. The problem statement, all variables and given/known data dy/dx + 2sin2pix = 0 -------Answer: y = 1/pi cos2pix + c 2. Relevant equations 3. The attempt at a solution I made several attempts but no success to the correct answer. The first step I made was subtracting 2sin2pix to both sides. I then used integration by parts, and this is where I've stopped because I was confused on how might my answer be anything like the true answer. This is where I stopped: x/pi cos2pi - integral 1/pi cos2pi dx. Any help would be much appreciated.