The rate of change of surface area of a sphere w.r:t. radius is.......,Select correct option from the given options.
(a) 8 π (diameter)
(b) 3 π (diameter)
(c) 4 π (radius)
(d) 8 π (radius)
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(d) 8 π (radius) is correct
Because The function relating surface area of a sphere to its radius is A = 4 π r 2 . So, instantaneous rate of change of surface area with respect to radius is A ′ = 8 π r .
Because The function relating surface area of a sphere to its radius is A = 4 π r 2 . So, instantaneous rate of change of surface area with respect to radius is A ′ = 8 π r .
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Step-by-step explanation:
option d is correct answer
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