题目列表(包括答案和解析)
| i |
| j |
| OA1 |
| j |
| AnAn+1 |
| i |
| j |
| OB1 |
| i |
| BnBn+1 |
| 3 |
| 4 |
| i |
| OAn |
| OBn |
| i |
| j |
| OA1 |
| j |
| An-1A |
| i |
| OB1 |
| i |
| 1 |
| 2 |
| j |
| Bn-1Bn |
| 1 |
| n(n+1) |
| j |
| OAn |
| OBn |
| OAn |
| OBn |
| i |
| j |
| OA1 |
| j |
| AnA |
| i |
| j |
| OB1 |
| i |
| BnBn+1 |
| 2 |
| 3 |
| i |
| OAn |
| OBn |
| i |
| j |
| OA1 |
| j |
| An-1A |
| i |
| OB1 |
| i |
| 1 |
| 2 |
| j |
| Bn-1Bn |
| 1 |
| n(n+1) |
| j |
| OAn |
| OBn |
| OAn |
| OBn |
sin
| ||||
| (n+1)an-6n+3 |
| 89 |
| 48 |
| i |
| j |
| OA1 |
| j |
| AnA |
| i |
| j |
| OB1 |
| i |
| BnBn+1 |
| 2 |
| 3 |
| i |
| OAn |
| OBn |
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