題目列表(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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