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Find all partial derivatives?

v = (xy)/(x-y)

vxx=
vxy=
vyx=
vyy=

2 answers

vx = -y^2/(x-y)^2
vy = x^2/(x-y)^2

vxx = 2y^2/(x-y)^3
vyy = 2x^2/(x-y)^3

vxy = vyx = -2xy/(x-y)^3

v=xy/x-y

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