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If y= tan ^(-1) ((acos x -bsin x )/( bc...

If ` y= tan ^(-1) ((acos x -bsin x )/( bcos x+asin x ) ) ,then (dy)/(dx)=`

A

2

B

-1

C

`a/b`

D

0

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Verified by Experts

The correct Answer is:
B
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