[考古] 2題計算(我是微積分白痴ˊˋ)

[n00298 (哆啦球)]

1.Find the local maximum and minimum values and saddle point(s) of

      f(x,y)=3x-x三方-2y平方+4四方.


2.Find the Taylor series for f(x)=lnx at 2.

需詳解

拜託各位大大了OTZ


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