1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906b3b396c7166b6a04b98d1d693746c.png)
⑴当
时,解不等式
;
⑵求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906b3b396c7166b6a04b98d1d693746c.png)
⑴当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9af6b8933cb0bcc983a15c903b5892e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affac963232209484c07999c02afd1b4.png)
⑵求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a03d20dbf203a39772f8ee650f33c7.png)
您最近一年使用:0次
2019-09-08更新
|
396次组卷
|
6卷引用:广东省汕头市2018届高三上学期期末质量监测 数学(文)试题
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29183b9e99452d069d552257fc1f80e.png)
(1)当
时,求不等式
的解集;
(2)若不等式
的解集为实数集
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29183b9e99452d069d552257fc1f80e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8e1dd8da540badcb9a8f427c5b202e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce25393cca5895dfb81ac9d681b5192.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-05-01更新
|
941次组卷
|
4卷引用:广东省六校联盟2019-2020学年高三上学期第二次联考数学(文)试题
3 . 选修4—5:不等式选讲
已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18dfee1fc666a79752a6fee3072641f1.png)
(1)求
的值域;
(2)若不等式
恒成立,求
的取值范围.
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18dfee1fc666a79752a6fee3072641f1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a641ef4494893e774e5b7ed9c4cddb52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次