Q. 215.0( 2 Votes )

Find<span lang="E

Answer :

Given,


(x2 + y2)2 = xy


Differentiating both side w.r.t x









OR


Given,


y = 3cos(log x) + 4sin(log x)


Differentiating both side,





Differentiating both side again,






Hence, Proved!


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