Question: Let u R [0, ) be differentiable. Prove that for each (x, y, z) (0, 0, 0), satisfies aF dz 8x

Let u R †’ [0, ˆž) be differentiable. Prove that for each (x, y, z) ‰  (0, 0, 0),
Let u R †’ [0, ˆž) be differentiable. Prove

satisfies

Let u R †’ [0, ˆž) be differentiable. Prove

aF dz 8x

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