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82问答网 > 1⼀2的 n-1次方，n→∞，的极限？

1⼀2的 n-1次方，n→∞，的极限？

2025-03-28 19:11:23

推荐回答（3个）

回答1：

是0，因为底数小于1，是一个单调递减的

回答2：

lim(n→∞) [1+2+...+(n-1)]/n²
=lim(n→∞) [1+(n-1)](n-1)/(2n²)
=lim(n→∞) (n²-n)/2n²
=lim(n→∞) [1-(1/n)]/2
=1/2

回答3：

极限等于0

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