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limx趋近于0sin3x/2x
人气:123 ℃ 时间:2020-03-26 09:45:42
解答
lim(x→0)sin3x/2x
=lim(x→0)(sin3x/3x)*(3/2)
=lim(3x→0)(sin3x/3x)*(3/2)
lim(x→0)sinx/x=1
=3/2
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