18 + 2 = 10 marks b). Consider the function f(x,y) =-(x²-1)-(x’y-x-1). m). Find the critical points of f(x,y). [Verify u

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18 2 10 Marks B Consider The Function F X Y X 1 X Y X 1 M Find The Critical Points Of F X Y Verify U 1 (36.62 KiB) Viewed 21 times

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18 + 2 = 10 marks b). Consider the function f(x,y) =-(x²-1)-(x’y-x-1). m). Find the critical points of f(x,y). [Verify using Mathematica (1). Using the Second Partials Test (SPT), find the relative extrema's of f(x,y). [Verify using Mathematica] (i). Does f violate the Extreme Value Theorem? Indicate reaso . 13 +6+1=10 marle