Solved: In Exercises 2123, find all points(x, y)wheref(x,
Chapter 7, Problem 22(choose chapter or problem)
In Exercises 2123, find all points(x, y)wheref(x, y)has a possiblerelative maximum or minimum. Then, use the second-derivative test todetermine, if possible, the nature off(x, y)at each of these points. Ifthe second-derivative test is inconclusive, so state. f(x, y)=7x25xy+y2+xy+6
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