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posted by Herb Tuesday, January 14, 2014 at 3:02pm.
What is the rate of change of the volume of a ball (V=(4/3)pi r^3) with respect to the radius when the radius is r=2?
LOL, it is the surface area 4 pi r^2 4 pi r^2 dr = dV or dV/dr = 4 pi r^2 or dV/dt = 4 pi r^2 dr/dt
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