2x-1 |
x-1 |
2x-1 |
x-1 |
2x-1 |
x-1 |
1 |
2 |
2x-1 |
x-1 |
1 |
2 |
1 |
2 |
x+1 |
1 |
x |
A.R | B.(6,+∞) | C.(5,+∞) | D.[5,+∞) |
2x+a |
2x+1 |
15 |
17 |
mx2+mx+1 |
A.(0,4) | B.[0,4] | C.[4,+∞) | D.(0,4] |
A.y=ax与y=logax(a>0,且a≠1) | ||
B.y=x与y=
| ||
C.y=lgx与y=lg
| ||
D.y=x2与y=lgx2 |
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