Find the Local Maximum and Minimum Values and Saddle Points $f ( x , y ) = x ^ { 3 } + y ^ { 3 } - 3 x y + 5$

question 24

Essay

Find the local maximum and minimum values and saddle points of the function $f ( x , y ) = x ^ { 3 } + y ^ { 3 } - 3 x y + 5$ .

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Sense of Humor

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