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If sin (xy) + (x)/(y) =x^(2) - y , " t...

If ` sin (xy) + (x)/(y) =x^(2) - y , " then " (dy)/(dx)` is equal to

A

`(y[2xy - y^2 cos(xy)-1])/(xy^2 cos(xy) +y^2 -x)`

B

`([2xy -y^2 cos (xy)-1])/(xy^2 cos(xy) +y^2 -x)`

C

`-(y[2xy - y^2 cos(xy)-1])/(xy^2 cos(xy) +y^2 -x)`

D

None of these

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The correct Answer is:
A
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