题目内容
观察下列各等式:
=
×
,
=
×
,
=
×
,
=
×
…,请用含n的等式表示你所观察到的规律.
| 22-1 |
| 1 |
| 3 |
| 32-1 |
| 2 |
| 4 |
| 42-1 |
| 3 |
| 5 |
| 52-1 |
| 4 |
| 6 |
根据题意归纳总结得:
=
×
(n≥1,n为正整数).
| (n+1)2-1 |
| n |
| n+2 |
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题目内容
| 22-1 |
| 1 |
| 3 |
| 32-1 |
| 2 |
| 4 |
| 42-1 |
| 3 |
| 5 |
| 52-1 |
| 4 |
| 6 |
| (n+1)2-1 |
| n |
| n+2 |