x+y |
2 |
A.y=lgx | B.y=3-x | C.y=x3 | D.y=-x2 |
x+y |
2 |
x+y |
2 |
x+y |
2 |
x+y |
2 |
x+y |
2 |
1 |
3 |
1 |
3 |
1 |
3 |
(
|
x+y |
2 |
1 |
3 |
x+y |
2 |
(
|
x+y |
2 |
x+y |
2 |
x+y |
2 |
(x+y)3 |
4 |
x+y |
2 |
x+y |
2 |
x+y |
2 |
(x+y) 2 |
2 |
x+y |
2 |
x |
| ||
2 |
A.a>1 | B.1<a<2 | C.1<a<3 | D.0<a<1 |
A.y=-2x | B.y=(
| C.y=-(
| D.y=-(
|
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