Solved: In Exercises 29 and 30, examine the function for extrema without using the
Chapter 13, Problem 30(choose chapter or problem)
In Exercises 29 and 30, examine the function for extrema without using the derivative tests and use a computer algebra system to graph the surface. (Hint: By observation, determine if it is possible for to be negative. When is equal to 0?)z x2 y22x2 y2 z
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