limx趋向于0时x-sinx/x+tanx
人气:136 ℃ 时间:2020-04-17 07:24:40
解答
lim【x→0】(x-sinx)/(x+tanx)
=lim【x→0】(1-cosx)/(1+sec²x)
=(1-cos0)/(1+sec²0)
=(1-1)/(1+1)
=0
答案:0
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