(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Partial differentiation question

V=xf(u) and u=y/x, show that x^2. d2v/dx2 + 2xy. d2v/dxdy + y^2. d2V/dy2 = 0

Is u the same as f(u)

2. Relevant equations

V=xf(u) and u=y/x

3. The attempt at a solution

do you just differentiate the product of x.y/x

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# Partial differentiaton question, how to distinguish between u and f (u )

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