Solution-Critical points of f as either saddle

1) let f(x,y)=xy+lnx+y^2-10

Find and classify all critical points of f as either saddle, local min or local max.

2) Given that f(x,y) = x^3 -3xy + y^3 Find and classify all the critical points of f as either saddle, local min or local max.

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Critical points of f as either saddle : Find and classify all critical points of f as either saddle, local min or local max.

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