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解题方法
1 . 若函数
(
,且
)的值域为
,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becd2542297e6ac83afda0f04f8c6dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3baa3392be365858498c37ff4d76e67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
A.![]() | B.![]() |
C.![]() | D.![]() |