已知
,关于
的不等式
恰有四个整数解,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ebafb83bab6eedcd3a1a7562b3c6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2022-10-11 21:27:31
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解题方法
【推荐1】函数
的图象恒在函数
图象的上方,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
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【推荐2】已知
:
;
:
,且
是
的必要不充分条件,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92709e341e7783b8d358f8baaa7b4c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf157f48b438b625f7a14db6b4f7b5.png)
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【推荐1】若关于
的不等式
的解集是
,则实数
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35a199db4e3141b6ed70c6f0c4f91a.png)
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【推荐2】若不存在整数x满足不等式
,则实数k的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce7171b1fafde7ff754855c46414699.png)
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