Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If `x^2+y^2=t-1/t` and `x^4+y^4=t^2+1/t^2,` then `x^3 y (dy)/(dx)=` - Sarthaks eConnect
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If `x^2+y^2=t-1/t` and `x^4+y^4=t^2+1/t^2,` then `x^3 y (dy)/(dx)=`

A.

0

B.

1

C.

-1

D.

none of these