将函数(x)=dfrac (1)(x+1)展开成(x-1)的幂级数2.计算(x)=dfrac (1)(x+1),其中(x)=dfrac (1)(x+1)是锥面(x)=dfrac (1)(x+1)被平面z=3所截的部分

将函数展开成(x-1)的幂级数

2.计算,其中是锥面被平面z=3所截的部分

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