Quy find the linearization [(x, y, z) of the function f(x, y, z) = x +...

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Quy find the linearization [(x, y, z) of the function f(x, y, z) = x² + xy + y² + = ² 2 ² al 1o (1,1,2). Then в find the upper bound for the magnitude of the errar E in the approximation f (x, y, z) = ((x, y, z) Ri|x-1| ≤ 0.01g ly-11 ≤ 0.01, 12-11 ≤0.08 = Over the region و Quy find the linearization [(x, y, z) of the function f(x, y, z) = x² + xy + y² + = ² 2 ² al 1o (1,1,2). Then в find the upper bound for the magnitude of the errar E in the approximation f (x, y, z) = ((x, y, z) Ri|x-1| ≤ 0.01g ly-11 ≤ 0.01, 12-11 ≤0.08 = Over the region و