Question: Question Three [6 marks] Let f(I, y, z) = 12 + 22. a) What are the domain and range of f (x, y, z)? b)

Question Three [6 marks] Let f(I, y, z) = 12 +

Question Three [6 marks] Let f(I, y, z) = 12 + 22. a) What are the domain and range of f (x, y, z)? b) Give the general form of a (three dimensional) level surface of f (x, y, z). Describe the shape of the surface. c) Give the general form of a (three dimensional) cross section of f(r, y, z) when I = a. Describe the shape of the surface

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