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解题方法
1 .
,
对于
,
,都有
成立,求
的取值范围( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38858c162f0ebbe089f59b0fc2a55f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ba6d93a671ca21730facc7fbf052c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa10bae6ce6e91bf99c580d102947b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-19更新
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1892次组卷
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6卷引用:甘肃省兰州市城关区兰州第一中学2023-2024学年高一上学期期中数学试题