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A variable triangle ABC is inscribed in ...

A variable triangle ABC is inscribed in a circle of diameter x units. At a particular instant the rate of change of side 'a' is x/2 time the rate of change of the opposite angle A then A =

A

`pi/4`

B

`pi/3`

C

`pi/2`

D

`pi`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)
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