State the relation between the instantaneous rate of change of area of a circle and…

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

State the relation between the instantaneous rate of change of area

\dfrac{dA}{dt}

of a circle and the instantaneous rate of change of its radius

\dfrac{dr}{dt}

when the radius is

r