Question: Find the derivative of the function at P 0 in the direction of u. (x, y, z) = x 2 + 2y 2 - 3z

Find the derivative of the function at P0 in the direction of u.

ƒ(x, y, z) = x2 + 2y2 - 3z2, P0(1, 1, 1), u = i + j + k

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