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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x
人气:242 ℃ 时间:2020-05-07 01:18:47
解答
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是怎么转化的啊分母分子同时有理化
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