A.y=|x|+
| B.y=
| ||||||
C.y=lgx+logx10 | D.y=3x+3-x |
1 |
|x| |
x2+2 | ||
|
x2+1 |
1 | ||
|
x2+1 |
1 | ||
|
1 |
lgx |
1 |
lgx |
1 |
10 |
1 |
lgx |
3x×3-x |
4x |
4x+2 |
1 |
100 |
2 |
100 |
3 |
100 |
99 |
100 |
x2+5 | ||
|
A.2 | B.
| C.1 | D.不存在 |
A.m<
| B.m<
| C.0<m<
| D.m>
|
A.(-2,2] | B.[-2,2] | C.(2,+∞) | D.(-∞,2] |
b+3 |
a-2 |
A.(-
| B.(-∞,-
| ||||
C.(-
| D.(-∞,-
|
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