5. Calculate yf. sin(xy) = x2 y 6. The volume of a right circular cone is V = gem-3h, where r is the radius of the base and h is the height a. Find the rate of change of the volume with respect to the height if the radius is constant. b. Find the rate of change of the volume with respect to the radius if the height is a constant. c. Find the rate of change of the volume if neither the radius nor the height are constants