d/dx(tan^-1(x/sqrt(a^2-x^2))=...

`d/dx(tan^-1(x/sqrt(a^2-x^2))=`

A

`a/(a^(2)+x^(2))`

B

`-a/(a^(2)+x^(2))`

C

`1/(asqrt(a^(2)-x^(2))`

D

`1/sqrt(a^(2) -x^(2))`

Verified by Experts

The correct Answer is:

D

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