Tutorial Exercise Evaluate the integral. 10 sin2(x) cos3(x) dx Step 1 Since 10 sin2(x) cos3(x) dx has an odd power of of cos(x), we will convert all but one power to sines. We know that cos2(x) = 1 1 - sin (x). Step 2 Making this substitution using 10 sin2(x) cos3(x) dx gives us 10 sin2(x) (1 - sin2(x)) cos(x) dx = 10 sin2(x) cos(x) dx - 1 - sin-(x) dx . X Submit Skip (you cannot come back)