名校
解题方法
1 . 已知
.
(1)若
,求
的取值范围;
(2)若
,不等式
恒成立,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39a4598937617597940b6efa14aedbc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec7ef12927ef4e2d8f6721a0ae6b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858fa4d468b0daaa5fcf922f9d0182dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee8a9cdb67755331d5aff8097e150b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-12-29更新
|
870次组卷
|
3卷引用:黑龙江省佳木斯市富锦市第一中学2022-2023学年高二下学期期末数学试题
名校
2 . 已知函数
.关于
的不等式
的解集为
,且
.
(1)求
的值;
(2)是否存在实数
,使函数
的最大值为
?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27fc3e8eb859d60a68ab2df296e31edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b61adc4745f283e4072ddd762f92ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fbd7c5060e366a637edf44d8e936b67.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1462d8c8f19b6cb88e6df65f73ce3f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次