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lim x趋向于无穷 (2^n+1+3^n+1)/(2^n+3^n)=
人气:248 ℃ 时间:2019-12-19 04:42:13
解答
x趋向于无穷
lim(2*2^n+3*3^n)/(2^n+3^n)
=lim[2*(2/3)^n+3]/[(2/3)^n+1]
=3
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