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亲爱的网友：f(x)=1g(x)=x^0bf(x)=x-1g(x)=x^2/x-1x=1rcosA,y=-1rsinA,U=｛1,2,3,4,5｝2X-Y3=0,L2:4X-2Y-1=0,L3:XY-1=0
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亲爱的网友：f(x)=1 g(x)=x^0 b f(x)=x-1 g(x)=x^2/x-1x=1 rcosA,y=-1 rsinA,
U=｛1,2,3,4,5｝2X-Y 3=0,L2:4X-2Y-1=0,L3:X Y-1=0
U=｛1,2,3,4,5｝2X-Y 3=0,L2:4X-2Y-1=0,L3:X Y-1=0
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