x+y |
1+xy |
1-x |
1+x |
1 |
2 |
1 |
2 |
x+y |
1+xy |
1-x |
1+x |
1-y |
1+y |
1-x |
1+x |
1-y |
1+y |
1-x-y+xy |
1+x+y+xy |
1-
| ||
1+
|
x+y |
1+xy |
1-x |
1+x |
1-x |
1+x |
1-x |
1+x |
x-y |
1-xy |
x-y |
1-xy |
x-y |
1-xy |
1 |
2 |
1 |
2 |
2x |
1+x2 |
1 |
2 |
2x |
1+x2 |
1 |
2 |
3 |
3 |
1 |
2 |
A.y=x4 | B.y=x5 | C.y=x+1 | D.y=
|
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