1 |
anan+1 |
|
|
|
n(4+7-3n) |
2 |
3 |
2 |
11 |
2 |
(n-2)(2+3n-7) |
2 |
3 |
2 |
11 |
2 |
|
|
1 |
anan+1 |
1 |
(3n-5)(3n-2) |
1 |
3 |
1 |
3n-5 |
1 |
3n-2 |
1 |
3 |
1 |
2 |
1 |
4 |
1 |
3n-5 |
1 |
3n-2 |
1 |
3 |
1 |
2 |
1 |
3n-2 |
n |
-6n+4 |
a | 2n |
1 |
2 |
1 |
16 |
n+n2 |
2k-1 |
1 |
anan+1 |
A.
| B.
| C.
| D.
|
A.2008 | B.2010 | C.4018 | D.1 |
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