firstly, all d's i use will mean partial derivative 'do' because i don't have the font installed. sorry :((adsbygoogle = window.adsbygoogle || []).push({});

please help me with these.. u gotta use euler theorem

1. if z= xf(y/x) + g(y/x), show that x^{2}(d^{2}z/dx^{2}) + 2xy(d^{2}z/dxdy) + y^{2}(d^{2}z/dy^{2}) =0

2. if z= (xy)/(x-y), PT (d^{2}z/dx^{2}) + 2(d^{2}z/dxdy) + (d^{2}z/dy^{2}) = 2/(x-y)

thanks...

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# Homework Help: Euler theorem doubts

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