2 |
1+x |
fn(0)-1 |
fn(0)+2 |
2 |
1+fn(0) |
fn+1(0)-1 |
fn+1(0)+2 |
1 |
2 |
fn(0)-1 |
fn(0)+2 |
1 |
2 |
1 |
4 |
1 |
2 |
1 |
2 |
1 |
6 |
1 |
2 |
1 |
6 |
1 |
2 |
A.(2n-1)2 | B.
| C.
| D.4n-1 |
a1+1 |
22 |
a2+1 |
23 |
an+1 |
2n+1 |
1 |
2 |
1 |
2 |
1 |
b1 |
1 |
b2 |
1 |
bn |
1 |
2×4 |
1 |
4×6 |
1 |
6×8 |
1 |
2n(2n+2) |
A.
| B.
| C.
| D.
|
© 2017-2019 超级试练试题库,All Rights Reserved.