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CUET
-- Mathematics - Section A
Applications of Derivatives
Find the rate of change of the area of a circle per second with respect to its diameter D when D = 2 cm.
\[\pi D\]
\[\frac{\pi }{2}D\]
\[2\pi D\]
\[\frac{\pi }{4}D\]
\[A =\frac{ { D }^{ 2 } }{4}\pi \]