Question: (18 pts) (a) Find the linearization of the function z = (1 + 2x)? (1 - y)? near (z, y) = (0, 0). (b) Find

(18 pts) (a) Find the linearization of the function z = (1 + 2x)? (1 - y)? near (z, y) = (0, 0). (b) Find the gradient of the function f(x, y, z) = x222 - 3yz + 222 at (x, y, z) = (2, -1, -1), and the equation of the tangent hyperplane at this point

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