Question: 5-22 Find the local maximum and minimum values and saddle point(s) of the function. You are encouraged to use a calculator or computer to graph

5-22 Find the local maximum and minimum values and saddle point(s) of the function. You are encouraged to use a calculator or computer to graph the function with a domain and viewpoint that reveals all the important aspects of the function. 20. f(x,)) = (% + yYe 21. f(x,y) = y* 2ycosx, -1
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