If y=tan ^(-1) sqrt(( a-x)/( a+x)) ,then...

If `y=tan ^(-1) sqrt(( a-x)/( a+x)) ,then (dy)/(dx) =`

A

`"cos"^(-1)x/a`

B

`-"cos"^(-1) x/a`

C

`1/2"cos"^(-1) x/a`

D

None of these

Verified by Experts

The correct Answer is:

D

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