1 |
2x+1 |
1 |
2+1 |
1 |
2-1+1 |
1 |
2 |
1 |
2 |
1 |
2z+1 |
2x-1 |
2(2x+1) |
2-x-1 |
2(2-x+1) |
1-2x |
2(1+2x) |
1 |
2 |
1 |
2x+1 |
1 |
2-x+1 |
1 |
2 |
1 |
2 |
1 |
2x+1 |
1 |
2x+1 |
1 |
2x+1 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
A.(-1,0)∪(0,1) | B.(-1,1) | C.(-∞,-1)∪(1,+∞) | D.(0,1) |
2x+1 |
3-4x |
8-2x |
A.[0,1] | B.[2,3] | C.[-1,0] | D.无法确定 |
f(2x) |
x-1 |
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