已知
,
,求
,
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100b2bfb818b9bb10cca53c3ad4ab02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516be1d86e3ad60ec72b101b5efc746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219ba6c8a1b54598db1a78cab28d9d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
更新时间:2023-10-20 16:43:16
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【知识点】 利用不等式求值或取值范围解读