lim (3^n+1-2^n+1)/(3^n+2^n)
=lim (3-2×(2/3)^n)/(1+(2/3)^n)
=(3-0)/(1+0)
=3
求极限lim (3^n+1-2^n+1)/(3^n+2^n)
求极限lim (3^n+1-2^n+1)/(3^n+2^n)
数学人气：308 ℃时间：2020-04-20 05:38:36
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