当x趋向于无穷时(e∧1/x-1)∧x的极限是多少?求过程。
2017-10-21
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(1-1/x)^x =[(x-1)/x]^x =[x/(x-1)]^(-x) =[1+1/(x-1)]^(-x) =1/[1+1/(x-1)]^(x) =1/[1+1/(x-1)]^(x-1)*[1+1/(x-1)] 当x趋于正无穷时, 1/[1+1/(x-1)]^(x-1)*[1+1/(x-1)] =1/[1+1/(x-1)]^(x-1) =1/e
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