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# P 347 Exercise 3.14 should be has been restated with three parts: (a) Find the critical points of xyz, if x, y, z belong to the surface of equation x...

P 347 Exercise 3.7.14 should be has been restated with three parts: (a) Find the critical points of xyz, if x, y, z belong to the surface of equation x + y + z 2 = 16. (b) Is there a maximum on the whole surface, and if so, which critical point is it? (c) Is there a maximum on the part of the surface where x, y, z are all positive? P. 349 Exercise 3.8.4 was badly stated.