2 | x |
2 | x |
9 |
32 |
A.1 | B.4 | C.2 | D.3 |
2 | x |
2 | x |
5 |
2 |
5 |
2 |
9 |
4 |
5 |
2 |
1 |
2 |
1 |
2 |
2 | x+2 |
2 | x+2 |
5 |
8 |
9 |
8 |
1 |
2 |
1 |
4 |
2 | x+4 |
2 | x+4 |
5 |
32 |
9 |
16 |
1 |
2 |
1 |
8 |
2 | x+6 |
2 | x+6 |
5 |
128 |
9 |
32 |
9 |
32 |
x |
1 |
lg(x-1) |
A.(1,+∞) | B.(1,2)∪(2,+∞) | C.[0,1) | D.(0,+∞) |
2 |
x |
16 |
x |
-2+log2x |
1 |
2 |
1 |
f(x) |
A.[-
| B.[2,
| C.[2,
| D.[-2,
|
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