If x=a ( tcos t- sin t ) ,y =a ( tsin t ...

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

A

`-tan t`

B

`-cot t`

C

`tan t`

D

`cot t`

Verified by Experts

The correct Answer is:

B

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