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Competitive Stats
Q13Section A (Section A)13 of 60

Saddle points of xy(5x+3y-6)

Consider the function f:R2→Rf:\mathbb{R}^{2}\to\mathbb{R} given by f(x,y)=xy(5x+3y−6)f(x,y)=xy(5x+3y-6). Which one of the following statements is NOT true?

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