1. The problem statement, all variables and given/known data ∫sinxcos(x/2)dx This isn't an actual homework problem, but one I found that I'm working on for test prep. 2. Relevant equations 3. The attempt at a solution ∫sinxcos(x/2) dx = ∫sinx√((1+cosx)/2) dx u = ½ + ½ cosx -2 du = sinx dx -2∫√(u) du = -2(2/3⋅u3/2) + c -2(2/3⋅u3/2) + c = -4/3⋅[(1+cosx)/2)3/2] + c -4/3⋅[(1+cosx)/2)3/2] = -4/3⋅(cos(x/2))3/2 + c I tried to check my solution by graphing my answer with theirs, but the table is displaying different values.