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Diberikan fungsi \\(f(x,y)=x^3-6xy+8y^3\\).

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Jika \$f_x(x,y)=Ax^2+By\$ dan \$f_y(x,y)=Cx+Dy^2\$, maka \$A+B+C+D=\\ldots\$.

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Titik stasioner fungsi \$f\$ adalah \$(0,0)\$ dan \$(x_0,y_0)\$ dengan \$x_0+y_0=\\ldots\$.

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Tentukan \$D(0,0)\$ dan \$f_{xx}(0,0)\$ berturut-turut.

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Titik \$(0,0)\$ merupakan titik \\(\\ldots\\).

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Tentukan \$D(x_0,y_0)\$ dan \$f_{xx}(x_0,y_0)\$ berturut-turut.

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Titik \$(x_0,y_0)\$ merupakan titik \\(\\ldots\\).

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