limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号x
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limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号xlimx趋向于正无穷,根号x+1减根号x除以根号x+2减根号xlimx趋向于正无穷,根号x+1减根号x除以根号x+2减根号xlimx趋向于
limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号x
limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号x
limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号x
limx趋向于正无穷,根号x+1减根号x除以根号x+2减根号x
=limx趋向于正无穷,根号x+2+根号x除以2(根号x+1+根号x)
=(1+1)/2(1+1)
=1/2