Problem # 3 Evaluate 1 2 (9 212 + 12 St - 1 at. Problem # 4 Find the volume of the solid of revolution formed by rotating the area under y= x + 1 over [0, 6] around the y-axis. y = x2+1 Problem # 5 Find the area of the region bounded by the curves y = sin x, y = cos x, x = 0, and X = 3 y y = cos x y = sin x A 2 *=0 X= O 4