已知函数
,a不为0.
(1)当
时,解不等式
;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a9338b97a28faae2f1de90c75302b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7b339246d52b29603d33c152f44de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53c18d3b7ba956a1ec73418e6db9731.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b817338735d4c23394d6601a7ea4ce.png)
21-22高一下·四川凉山·期末 查看更多[7]
更新时间:2022-10-23 18:02:35
|
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知全集
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59184186ad873ede048d61705366a00b.png)
(1)求
,
;
(2)若
,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f45395d07ab7ea06ea10544e835d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f403c503caa8b624218b26f4b163ec36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59184186ad873ede048d61705366a00b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07241606934d6c75cf04455979d0e1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b35718e87245f93a1a4f3826db44968.png)
(1)若函数
图像与
轴的两个交点的横坐标都在
内,求实数
的取值范围;
(2)若关于
的一元二次方程
在
内有唯一解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b35718e87245f93a1a4f3826db44968.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知函数
,
.
(1)若函数值
时,其解集为
,求实数
的值;
(2)若关于
的不等式
的解集为空集
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6197c1aa468bec795a0fbcc097cdc792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4c5cfe45ae8adcecba850b127a315b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e3b2fb6d3554a98ce9057ae6010b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】已知函数
.
(1)若
,求不等式
的解集;
(2)若不等式
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919710d7af58abda8cf4bb189d889a00.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152b2d15bb97a216d5c2c7d9e5d9b16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7000d9103670cb5b65b0aa8be654f.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca88b72ac8dc9c7c137af932de90bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次