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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