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find all critial ponits and local extreme/saddle points of f(x,y)=13x^2-2x^3+y^2+2xy

Posted: Thu May 05, 2022 7:01 pm
by answerhappygod
find all critial ponits and local extreme/saddle points of f(x,y)=13x^2-2x^3+y^2+2xy