The surface area, A cm 2 , of an expanding sphere of radius r cm is given
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The surface area, A cm2, of an expanding sphere of radius r cm is given by A = 4πr2. Find the rate of change of the area with respect to the radius at the instant when the radius is 6 cm.
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Related Book For
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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