1) The volume of a right cylinder is given by the equation V = r² h, where r is the radius and h is the height. Suppose that r and h are both functions of time t. Find the rate of change in the Volume V with respect to the time t. In other words, find. One of the following is the correct answer. dt (a) Tr²h+2rh (b) πr² dh +2ærhª dt (c) (d) dV (e) d is none of the above dt If the correct answer is (a), then type a. If the correct answer is (b), then type b. Et cetera. dV dt dv dt dV dt dV dt = = : 2πrh = = 2xrh dr

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