m+n |
1+mn |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
m+n |
1+mn |
m-n |
1-mn |
m-n |
1-mn |
1 |
n2+3n+1 |
1 |
(n+1)(n+2)-1 |
| ||||
1+(
|
1 |
n+1 |
-1 |
n+2 |
1 |
n+1 |
1 |
n+2 |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
n+1 |
1 |
n+2 |
1 |
2 |
1 |
n+2 |
1 |
n+2 |
1 |
n+2 |
1 |
2 |
1 |
n+2 |
1 |
2 |
1 |
5 |
1 |
11 |
1 |
n2+3n+1 |
1 |
2 |
2 |
| ||
2010个f |
2 |
|
A.
| B.
| C.2 | D.8 |
3+x+x2 |
1+x |
A.2
| B.-1+2
| C.-1-2
| D.-2+2
|
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