sqrt (1 - x ^(2)) + sqrt( 1- y ^(2)) = a...

`sqrt (1 - x ^(2)) + sqrt( 1- y ^(2)) = a ( x - y),` तब `(dy)/(dx)` का मान होगा -

A

`sqrt (( x - y)/( x + y))`

B

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

C

`sqrt (( x + y )/( x - y ))`

D

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

Verified by Experts

The correct Answer is:

D

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