यदि x sqrt ( 1 + y) + y sqrt (1 +x ) = 0...

यदि `x sqrt ( 1 + y) + y sqrt (1 +x ) = 0, `तब ` (dy)/(dx)` का मान बराबर होगा -

A

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

B

`x ^(2) +1`

C

`sqrt ((1 + x )/( 1 + y))`

D

इनमे से कोई नहीं

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The correct Answer is:

A

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