0)sin x /x ^3+3x

发布时间:2021-02-26 04:22:50

0)sin x /x ^3+3x

网友回答

lim(x ->0)sin x /x ^3+3x
=lim(x ->0)sin x /[x(x ^2+3)]
=lim(x ->0)x /[x(x ^2+3)]
=lim(x ->0)1 /(x ^2+3)
=1/3
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