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数学
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lim x趋向于无穷 2^n sin(x/2^n)
人气：390 ℃ 时间：2020-05-09 14:46:41
解答
x趋向于无穷时,sin(x/2^n)等价于x/2^n
所以lim2^n sin(x/2^n)=lim2^n *x/2^n=x=无穷
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