Question: 14. (a) Determine all possible critical point(s) of f(r, y) = 2 +ry+y? 3r 6y. (b) without using the Second Order Partial Derivatives Test

14. (a) Determine all possible critical point(s) of f(x, y) = x2 + xy + y2 ? 3x ? 6y. (b) without using the Second Order Part

14. (a) Determine all possible critical point(s) of f(r, y) = 2 +ry+y? 3r 6y. (b) without using the Second Order Partial Derivatives Test (SOPDT), de termine the nature of the obtained C.P(s). (c) Check your answer in (b) through the (SOPDT).

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