名校
1 . 已知函数
是常数.
(1)当
时,求函数
的值域;
(2)当
时,求方程
的解集;
(3)若函数
在区间
上有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6f819f0b5aaa03198a8902d6d6a8d2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccefc9e2b317b368efcaa63a86d191c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217a7df60635c0e378fea8177861b1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-01-07更新
|
1393次组卷
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2卷引用:江苏省宿迁市沭阳县修远中学2017-2018学年高一上学期第二次月考数学试题
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解题方法
2 . 已知函数
,
.
(1)若函数
在
上是减函数,求实数
的取值范围;
(2)是否存在整数
,使得
的解集恰好是
,若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb005a926d5e59ff723b08fb3c769c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d300a3a6d3270bccac16b34fd7a3cb5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)是否存在整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3570a881eebe0d38ea2faf5fc71cd49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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2018-01-11更新
|
1086次组卷
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3卷引用:湖南省长沙市第一中学2017-2018学年高一上学期第二次阶段性检测数学试题
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3 . 已知函数
,若关于
的不等式
的解集为空集,则实数
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a534b7e75b18d81a3e3217033807dcce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d38afb7b94a0fe32041033685ce620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-03-15更新
|
986次组卷
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2卷引用:浙江省台州市黄岩中学2020-2021学年高一上学期10月模块考试数学试题
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4 . 函数
是定义在
上的偶函数,当
时,
;
(1)求函数
的解析式;并写出函数
的单调递增区间(不要求证明);
(2)求
在区间
上的最小值;
(3)求不等式
的解集;
(4)若
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bba3c8d1fb704de3497ffdb5a0fac68.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3696c14fd7401ca2fd97865db4d9a2f.png)
(3)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665dc334a37e61c356b636604eb0f8c3.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94fa8494b0c7283a5a2daa6b78ea5113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知函数
,当
时,恒有
.
(1)求
的表达式及定义域;
(2)若方程
有解,求实数
的取值范围;
(3)若方程
的解集为
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/b79709f2d62e433197d925e1c3f817d8.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/9747fa14833748bfbf3777659c1fad60.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/eca97ea1461c4e4da00a8a2f8e688ea8.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/01b1e2a8404147df8319c8018fc87941.png)
(2)若方程
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/65a972fc19d14665beee0ee03ceb6dad.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/62ac12338fe14b27980cd103b1a4dc23.png)
(3)若方程
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/f9e59a20e40a454dad79f628cf6e8c4d.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/9605438f9d03409cb9960cd22c0e5462.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572468712128512/1572468718215168/STEM/c378338c9603470d9cb8a81528c4cc7f.png)
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