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Question 1 (30 points) Question 1) Multivariate Calculus: (a) Find and classify all the stationary points of f(x, y) = xy + + (b) Under

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Question 1 (30 points) Question 1) Multivariate Calculus: (a) Find and classify all the stationary points of f(x, y) = xy + + (b) Under what conditions on the constant k will the function g(x, y, z) = kx + kxz - 2yz - y- + k 2 Z have a local minimum? [15+15= 30 marks]

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