limx趋于无穷 (1+1/x)^x/2 和lim趋于无穷(1+x/x)^2x
3个回答
(1+1/x)^x/2 =√(1+1/x)^x=√e
(1+x/x)^2x =[(1+1/x)^x}^2=e^2
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