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If x =a (cos theta + theta sin theta ), ...

If `x =a (cos theta + theta sin theta ), y =a (sin theta - theta cos theta )` then `(dy)/(dx) =`

A

`tan theta `

B

`cot theta `

C

`cot ""theta / 2`

D

`tan "" theta /2`

Text Solution

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The correct Answer is:
A
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