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The length x of a rectangle is decreasin...

The length x of a rectangle is decreasing at the rate of 5 cm`//`minute & the width y is increasing at the rate of 4cm/minute. When x=8 cm & y=6 cm. Find the rate of change of
i. The perimeter and
ii. The area of rectangle

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The correct Answer is:
(i)`-2`cm/min
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