1 . 已知函数
.
(1)若不等式
的解集为
,求实数
的值;
(2)若在(1)的条件下,存在实数
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20c018ec0999ed877239171a17eea12.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b3749bfef2e73f7dcf10152c35a866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若在(1)的条件下,存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0245f0e0a6d080e68a02c5bb07d92790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-05-30更新
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2卷引用:2019届广西柳州市高三10月模拟考试数学(理)试题