Answer: 2124 Use a graph or level curves or both to estimate the local maximum and
Chapter 14, Problem 23(choose chapter or problem)
2124 Use a graph or level curves or both to estimate the local maximum and minimum values and saddle point(s) of the function. Then use calculus to find these values preciselyf x, y sin x sin y sinx y0 x 2 0 y 2f x, y
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