已知关于
的不等式
的解集为
.
(1)若
,求实数
的取值范围,
(2)若存在两个实数
,且
,使得
或
,求实数
的取值范围;
(3)李华说集合
中可能仅有一个整数,试判断李华的说法是否正确?并说明你的理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d270e0447468a0173199cfcf7e8019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b897a0ec98766cc01c277db5a6f1859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若存在两个实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6810589b9d4cff40ea3c015e466e6e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f2cc04996a6efcba936f437117a4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f98d21cbb21fcb8392e77e462c1da76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)李华说集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
更新时间:2023-10-13 11:06:24
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解题方法
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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