1. The problem statement, all variables and given/known data integrate the following function: x*√(2x-x2) 2. Relevant equations substitutions? 3. The attempt at a solution I substituted x with x=2sin2u. From that I ended up with ∫x*√(2x-x2)= 16∫sin4u*cos2u Now I'm supposed to use a formula from an integrals table.. but which?