The length x of a rectangle is decreasin...

The length x of a rectangle is decreasing at the rate of 3 cm/minute and the width y is increasing at the rate of 2cm/minute. When `x =10`cm and `y = 6`cm, find the rates of change of (a) the perimeter and (b) the area of the rectangle.

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NCERT GUJARATI-APPLICATION OF DERIVATIVES-EXERCISE 6.6

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