[考古] 政大國貿93 second-order Taylor series

[applexgreen (親愛的早安)]

The function f(X1,X2)=3X1^2+2X2^2-4X2+1 has a turning pt. at(0,1)=-1
Evaluate f(1/8,10/9) using a second-order Taylor series approximation.
What kind of turning pt.do u think it is?

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