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

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

A

`1/(2(1+x)sqrtx)`

B

`1/((1+x)sqrtx)`

C

`-1/(2(1+x)sqrtx)`

D

None of these

Verified by Experts

The correct Answer is:

C

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