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At a given instant, the legs of a right ...

At a given instant, the legs of a right -angle triangle are 6 inch. And `8 "inch"`. If the first leg increases at `2 "inch"// min` and the second decreases at `1 "inch"//min`, then, after 2 minutes, area of the triangle is changing at the rate of

A

`1 sq. "inch"// min`.

B

`2 sq. "inch"//min`.

C

`2sq . "Inch" //min`.

D

`5 sq. "inch"//min`.

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The correct Answer is:
A
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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