题目内容
函数y=
(x∈A)的值域是(-∞,0]∪[4,+∞),则集合A=______.
| 2x-5 |
| x-3 |
由题意,
≤0或
≥4,解得x∈[
,3)∪(3,
],
故答案为[
,3)∪(3,
]
| 2x-5 |
| x-3 |
| 2x-5 |
| x-3 |
| 5 |
| 2 |
| 7 |
| 2 |
故答案为[
| 5 |
| 2 |
| 7 |
| 2 |
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题目内容
| 2x-5 |
| x-3 |
| 2x-5 |
| x-3 |
| 2x-5 |
| x-3 |
| 5 |
| 2 |
| 7 |
| 2 |
| 5 |
| 2 |
| 7 |
| 2 |