Question: The length of a rectangle is decreasing at the rate of 2 cm/sec while the width w is increasing at the rate of 2

The length ∫ of a rectangle is decreasing at the rate of 2 cm/sec while the width w is increasing at the rate of 2 cm/sec. When ∫ = 12 cm and w = 5 cm, find the rates of change of

(a) The area,

(b) The perimeter, and

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