Application of DerivativeHard

Question

If V = πr3, at what rate in cubic units is V increasing when r = 10 and = 0. 01 ?

Options

A.π
B.
C.40π
D.4π/3

Solution

V = πr3
=4π2
=4π × 100 × 0. 01
[∵  r = 10 and = 0. 01]
= 4π

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