已知函数
.
(1)若
的解集为
,求实数
的值;
(2)若
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af161365b446fadf250b17e86b939a41.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668df942e4c9171de5e7ea45838c8ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
更新时间:2023-12-26 11:27:39
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【推荐1】已知关于
的一元二次不等式
,其中
.
(Ⅰ)若不等式的解集为
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(Ⅱ)解上述含参一元二次不等式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0f80da3df2ac1f01efe3f40c0d6b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(Ⅰ)若不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b70cdd9192d83bea393d5bbda734799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)解上述含参一元二次不等式.
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解题方法
【推荐1】已知关于x的不等式
.
(1)若不等式的解集为
,求实数k的值;
(2)若不等式的解集为R,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6d03dfc5b4ce38e17403b3b49fdc15.png)
(1)若不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c8ca291d660778ba32a6b4d7d53d3b.png)
(2)若不等式的解集为R,求实数k的取值范围.
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解答题-问答题
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【推荐2】已知不等式
的解集为
,不等式
的解集为
.
(1)求
;
(2)若不等式
的解集是
,求
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e1bcced697608aa2a6c6afcc181da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b70384c1aca0606eac594388b59c0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8023e1902803a7939d2aa32ba9e2d44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33422dedd592fa9687d1ae7a53b3ca1a.png)
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