3^(n+1)-2^n/2^(n+1)+3^n 当n趋向于无穷大时 求极限
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3^(n+1)-2^n/2^(n+1)+3^n当n趋向于无穷大时求极限3^(n+1)-2^n/2^(n+1)+3^n当n趋向于无穷大时求极限3^(n+1)-2^n/2^(n+1)+3^n当n趋向于无穷
3^(n+1)-2^n/2^(n+1)+3^n 当n趋向于无穷大时 求极限
3^(n+1)-2^n/2^(n+1)+3^n 当n趋向于无穷大时 求极限
3^(n+1)-2^n/2^(n+1)+3^n 当n趋向于无穷大时 求极限
lim(n→∞) [3^(n+1)-2^n]/[2^(n+1)+3^n]
=lim(n→∞) [3-(2/3)^n]/[2*(2/3)^n+1]
=(3-0)/(2*0+1)
=3
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