maribelyanez789 maribelyanez789

25-05-2023
Mathematics

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2. Given f(x, y) = 12x − 2x³ + 3y² + 6xy. - (i) Find critical points of f. [2 marks] (ii) Use the second derivative test to determine whether the critical point is a local maximum, a local minimum or a saddle point. [5 marks]

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