1. The problem statement, all variables and given/known data Apparently I'm doing something wrong. I'm kind of lost as to what because I looked over my work several times. 2. Relevant equations sin^2 x = ( 1 - cos 2x )/2 cos^2 x = ( 1 - sin 2x )/2 integral sin(x) dx = -cos(x) integral cos(x) dx = sin(x) 3. The attempt at a solution SEE ATTACHMENT Wolfram Alpha says the correct solution is 1/64 (24 x+8 sin(4 x)+sin(8 x))+constant Thanks for any help you can provide!