名校
解题方法
1 . 已知函数
,
.
(1)解不等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f023d16c7a30102cb0ae856d60ecc2cd.png)
(2)是否存在实数t,使得不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ef8f27cee6b91bfd88aad89d65d80d.png)
,对任意的
及任意锐角
都成立,若存在,求出t的取值范围:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7c4adef3485e8ac6e50d1926365327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541ca543427de0dafb2c1a1254f277d3.png)
(1)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f023d16c7a30102cb0ae856d60ecc2cd.png)
(2)是否存在实数t,使得不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ef8f27cee6b91bfd88aad89d65d80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0a4fc0411071f8d419c4d922508c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc0efa8f8b017d2fb478316cef35de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2020-02-25更新
|
1021次组卷
|
3卷引用:重庆市第一中学校2018-2019学年高一上学期期末数学试题
名校
2 . 设两实数
不相等且均不为
.若函数
在
时,函数值
的取值区间恰为
,就称区间
为
的一个“倒域区间”.已知函数
.
(1)求函数
在
内的“倒域区间”;
(2)若函数
在定义域
内所有“倒域区间”的图象作为函数
的图象,是否存在实数
,使得
与
恰好有2个公共点?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/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e207cf62e3a7e282eac4c4a3455bbf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8f242c69dfbcdf4320422b490367cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d4522656e326cc97f8633393caf3c8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fa487d0a0d58ffeae69ccb102c5343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-12-05更新
|
1199次组卷
|
3卷引用:重庆市第八中学2018-2019学年高一上学期期末数学试题
名校
3 . 已知函数
,若
,则满足
的x的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d309dfca7e8682b1f1b258b4f7b0cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad83b0ba1fd437e871f8f0ff47b2624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea280f297a81a280c0550e008f0b4cd1.png)
您最近一年使用:0次