let V be the volume of a cylinder having height,h and radius, r and assume that h and r vary with time.
i)how are dV/dt, dh/dt and dr/dt related?
ii)at a certain instant, the height is 6 in and increasing at 1 in/s, while the radius is 10 in decreasing at 1 in/s. How fast is the volume changing at that instant? is the volume increasing or decreasing at that instant?This question relate to product rule or chain rule...?please help me...?http://answers.yahoo.com/question/index;
