Question: Find the components of the gradient and the elements of the Hessian for each of the following functions, where the c's are constants: (a) U

Find the components of the gradient and the elements of the Hessian for each of the following functions, where the c's are constants:
(a) U = c1x2 + c2y2 + c3z2;
(b) U = c(x + y + z)2.

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