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If x^2+y^2=t-1/t a n dx^4+y^4=t^2+1/(t^2...

If `x^2+y^2=t-1/t a n dx^4+y^4=t^2+1/(t^2),t h e nx^3y(dy)/(dx)=` 0 (b) 1 (c) `-1` (d) none of these

A

1

B

2

C

3

D

4

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The correct Answer is:
A
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