Question: Find f at the given point. (x, y, z) = 2z 3 - 3(x 2 + y 2 )z + tan -1 xz, (1, 1,

Find ∇f at the given point.

ƒ(x, y, z) = 2z3 - 3(x2 + y2)z + tan-1 xz, (1, 1, 1)

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