名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf222f60735bbe6c3a2815940fc83ae6.png)
(1)若关于x的不等式
的解集为
,求a,
的值;
(2)已知
,当
时,
恒成立,求实数a的取值范围;
(3)定义:闭区间
的长度为
,若对于任意长度为1的闭区间D,存在
,求正数a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf222f60735bbe6c3a2815940fc83ae6.png)
(1)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b8a984f628ab312420a600d3bade26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc296c74c60e46c30d99344144e0ff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520a8afb71f6d0d59de3b552466ca82b.png)
(3)定义:闭区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf7f7a157dbd3cf94f95e32a354f381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c54705d32dc6820f1a90eec2225dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a529484fb32f9423c6b31c6a8f33bff.png)
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2022-12-17更新
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983次组卷
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6卷引用:重庆市黔江中学校2023-2024学年高一上学期11月月考数学试题