1-2log 6x |
1-2log 6x |
log | x6 |
log | x6 |
log | x6 |
1 |
2 |
log | x6 |
log |
|
6 |
6 |
2x-1 |
x+1 |
A.{x|x<-1或x>
| B.{x|x>
| ||||
C.{x|-1<x<
| D.{x|x>-1} |
π |
6 |
π |
4 |
A.[-1,0] | B.(-1,0] | C.[0,1) | D.[0,1] |
x+2 |
1 |
lg(2-x) |
A.(1,+∞) | B.(-∞,-1) | C.(-1,1) | D.(-∞,-1)∪(1,+∞) |
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