|
|
3 |
5 |
1 |
2 |
3 |
5 |
3 |
5 |
1 |
5 |
1 |
5 |
1 |
2 |
1 |
5 |
2 |
5 |
2 |
5 |
1 |
2 |
2 |
5 |
4 |
5 |
1 |
2 |
4 |
5 |
4 |
5 |
3 |
5 |
4 |
5 |
4 |
5 |
n! |
10n |
A.递增数列 | B.递减数列 |
C.从某项后为递减 | D.从某项后为递增 |
an+2 |
an+1 |
2 |
2(2
| ||
7 |
4 |
9 |
2 |
3 |
A.有最大项,没有最小项 |
B.有最小项,没有最大项 |
C.既有最大项又有最小项 |
D.既没有最大项也没有最小项 |
3 |
1 |
{an} |
A.11 | B.-11 | C.13 | D.-13 |
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