1 |
an-n |
37 |
44 |
4(1-2n) |
1-22 |
2(1-2n) |
1-22 |
2 |
3 |
2n+1+2 |
3 |
|
1 |
an-n |
1 |
2n+n |
1 |
3 |
37 |
44 |
1 |
21+1 |
1 |
22+2 |
1 |
23+3 |
1 |
2n+n |
1 |
3 |
1 |
22 |
1 |
23 |
1 |
2n |
1 |
3 |
| ||||
1-
|
1 |
3 |
1 |
2 |
1 |
2n |
5 |
6 |
1 |
2n |
5 |
6 |
37 |
44 |
37 |
44 |
A.±
| B.-
| C.
| D.±3 |
A.9 | B.4 | C.6 | D.12 |
3 |
3 |
A.1 | B.±2 | C.±1 | D.2 |
© 2017-2019 超级试练试题库,All Rights Reserved.