题目内容
计算:
(
+
+…+
)=______.
| lim |
| n→∞ |
| 1 |
| n2 |
| 2 |
| n2 |
| n |
| n2 |
| lim |
| n→∞ |
| 1 |
| n2 |
| 2 |
| n2 |
| n |
| n2 |
| lim |
| n→∞ |
| 1+2+…+n |
| n2 |
=
| lim |
| n→∞ |
| ||
| n2 |
| lim |
| n→∞ |
1+
| ||
| 2 |
| 1 |
| 2 |
故答案为:
| 1 |
| 2 |
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题目内容
| lim |
| n→∞ |
| 1 |
| n2 |
| 2 |
| n2 |
| n |
| n2 |
| lim |
| n→∞ |
| 1 |
| n2 |
| 2 |
| n2 |
| n |
| n2 |
| lim |
| n→∞ |
| 1+2+…+n |
| n2 |
| lim |
| n→∞ |
| ||
| n2 |
| lim |
| n→∞ |
1+
| ||
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |