2x-a |
a•2x+1 |
A.[-1,1] | B.(-1,1] | C.(-1,1] | D.(-∞,-1)∪(1,+∞) |
2x-a |
a•2x+1 |
2-x-a |
a•2-x+1 |
2x-a |
a•2x+1 |
1-a•2x |
2x+a |
2x-a |
a•2x+1 |
1-a2•22x+22x-a2 |
(2x+a)(a•2x+1) |
1+2x |
1-2x |
2 | ||
|
1 |
2x |
2 | ||
|
2 |
3 |
A.y=-3x | B.y=-2x | C.y=3x | D.y=2x |
2y |
x |
8x |
y |
A.y=x3+x | B.y=-log2x | C.y=3x | D.y=
|
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