名校
1 . 已知函数
,
,当
时,恒有
.
(1)求
的表达式;
(2)若方程
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a165fb218273c2e13a9f075ffb9da7d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11adc9edf80fefd5c0190f2cdd70490.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d10aa3a4e49e6045068843a723fdf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-08-07更新
|
633次组卷
|
3卷引用:湖南省衡阳市第八中学2019-2020学年高二下学期6月第三次月考数学试题
解题方法
2 . 设函数
.
(1)若方程
的解集为
.
①求
,
的值;
②求
的值.
(2)若
,问:是否存在实数
,使得对所有满足“
,
,且
”的实数
,都有
成立?若存在,求
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cfc162fb9bb562f3c7856efaca3c76.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c997d0922d59cf3eee3c4a5bc6286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abbbd6eb657ab50ea9d1376e70fdc28.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea01942c672264b9f8830d3af9b9ba9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6270bb08b90f72d5671ab8225f356c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fe3251e054fe97089806ba7033f802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ae395b9e1dfb37685b441c68bcdc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 若关于
的不等式
的解集是空集,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70155a69eb854f4f70abce9729fde238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-07-01更新
|
515次组卷
|
5卷引用:河北省石家庄市第二中学2016-2017学年高二下学期期末考试数学(理)试题