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数学
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lim(sin2x/x)^(1+3x),当x趋于0时等于多少
人气:426 ℃ 时间:2020-03-24 18:56:28
解答
lim(x→0)(sin2x/x)^(1+3x)
=lim(x→0)(sin2x/x)^[lim(x→0)(1+3x)]
=lim(x→0)(sin2x/x)^1
=lim(x→0)(sin2x/x)
=2
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