1 |
2 |
2 |
3 |
1 |
2 |
1 |
x |
1 |
2 |
1 |
2 |
1 |
2 |
2 |
3 |
1 |
x |
(1-x)(1+x+2x2) |
x |
1 |
6 |
1 |
2 |
2 |
3 |
2 |
3 |
1 |
x |
1 |
xn |
c | 1n |
1 |
x |
c | 2n |
c | n-1n |
1 |
xn-1 |
c | 1n |
c | 2n |
c | n-1n |
1 |
xn-2 |
1 |
2 |
c | 1n |
1 |
xn-2 |
c | 2n |
1 |
xn-4 |
c | n-1n |
1 |
xn-2 |
1 |
2 |
c | 1n |
c | 2n |
c | n-1n |
A.1 | B.
| C.
| D.
|
1-x |
ax |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
n |
a |
x |
1 |
2 |
1 |
n |
3 |
© 2017-2019 超级试练试题库,All Rights Reserved.