Question

if u= (x²-y²)F(xy) then show that uxx +uyy=(x⁴-y⁴)F¹¹(xy)
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Answer 1

Step-by-step explanation:

z = sin(x) cos(xy),. (e) z = e(x2+y2),. (f) z = sin(x2 + y). Notation For first and second order partial derivatives there is a.

Answer 2

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Step-by-step explanation:

z = sin(x) cos(xy),. (e) z = e(x2+y2),. (f) z = sin(x2 + y). Notation For first and second order partial derivatives there is a.