Question: Let f(x, y, z) = (x + y + z + ln(4 - x 2 - y 2 - z 2 ). (a) Evaluate f

Let f(x, y, z) = (x + √y + √z + ln(4 - x2 - y2 - z2).
(a) Evaluate f (1, 1, 1).
(b) Find and describe the domain of f.

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