If x^(2) +y^(2) =t-(1)/(t) andx^(4) +y^(...

If` x^(2) +y^(2) =t-(1)/(t) andx^(4) +y^(4) =t^(2) +(1)/( t^(2)),then (dy)/(dx) =`

A

`1//xy^3`

B

`1//x^3y`

C

`-1//x^3 y`

D

`-1//xy^3`

Verified by Experts

The correct Answer is:

B

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