Problem

Consider the function F(x, y, z) = 2x3 y + xz2 + y3z5 − 7xyz. (a) Find Fxx , Fyy, and...

Consider the function F(x, y, z) = 2x3 y + xz2 + y3z5 − 7xyz.

(a) Find Fxx , Fyy, and Fzz .

(b) Calculate the mixed second-order partials Fxy, Fyx , Fxz, Fzx , Fyz , and Fzy , and verify Theorem 4.3.

(c) Is Fxyx = Fxxy? Could you have known this without resorting to calculation?

(d) Is Fxyz = Fyzx ?

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Solutions For Problems in Chapter 2.4