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-- Mathematics - Section B1
Applications of Derivatives
The radius r of a given sphere increases at the rate of 4 cm/s. Find the rate of change in its volume with respect to time when r = 0.25 cms.
\[16\pi \]
\[64\pi \]
\[36\pi \]
\[\pi \]
dV/dt =\[16\pi { r }^{ 2 } \]