名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4f64534a7a220fcac4f7f931a0baee.png)
(Ⅰ)已知常数
解关于
的不等式
;
(Ⅱ)若函数
的图象恒在函数
图象的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4f64534a7a220fcac4f7f931a0baee.png)
(Ⅰ)已知常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ef01e8878bb8939c5657025ec55294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b7829c0ec4d2abe0973e3b560e369.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-04-22更新
|
419次组卷
|
5卷引用:2017届四川省南充市第三次诊断考试数学(文)试卷
名校
2 . 已知函数
.
(1)若
,解不等式
;
(2)是否存在实数
,使不等式
对一切实数
恒成立?若存在,求出
的取值范围,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242b7095d2bea8f94d3a0366ded17f30.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cdff8dbc573b88a9ce6225ab287e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-10-21更新
|
194次组卷
|
3卷引用:上海市上海中学2017-2018学年高一上学期期中数学试题