名校
解题方法
1 . 已知当
时,函数
的图象与
的图象有且只有一个交点,则正实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84c5adeb3bce246ebbe10df3ee61d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef8bb70573533ebdcdda7a0766617d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21cecca7838b2461d98505a0454c1f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数
与
的图象上不存在关于
轴对称的点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b37ea518fb906f9e6345e5005bade5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a47168857d0210adb087f4cf8522287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 已知函数
(x∈R)为奇函数.
(1)求实数k的值;
(2)若对
[-2,-1],不等式
≤6恒成立,求实数m的取值范围;
(3)若函数
-5在[1,+∞]上有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/283a01fb8429e03375be01b5a1332e6d.png)
(1)求实数k的值;
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0aa9d781436ea046ee072ca8482f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9638c1e905819a3e6f35a973a9e82dd6.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b38f14024ae342f04a31a8dc5fdf26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-05-03更新
|
602次组卷
|
3卷引用:陕西省西安市第三中学2022-2023学年高二下学期期末理科数学试题
名校
4 . 对于定义域为D的函数
,若存在区间
使得
同时满足:①
在
上是单调函数;②当
的定义域为
时,
的值域也为
,则称区间
为该函数的一个“和谐区间”,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d3d92b8612c91cb6b88c34ea153e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
A.函数![]() |
B.函数![]() ![]() |
C.若定义在![]() ![]() ![]() |
D.若函数![]() ![]() |
您最近一年使用:0次
2023-02-17更新
|
1879次组卷
|
7卷引用:陕西省渭南市大荔县2022-2023学年高一上学期期末数学试题(北师大版)
解题方法
5 . 已知函数
,若存在四个实数
,
,
,
,满足
,
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658303c4f74c8f52f0ce219f36b2ebd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951836ef5e4cfd3689a94810e0f8d43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67afd34495f2c2c3fe2deec14e1b4b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fedb7036f4975bc3c789ca47f77977.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知函数
,若
,
,则①
;②
;③
;④
.这四个结论中正确的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff057f0c187c449de77d0815954fd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2714f1eb0e74a1a31fa2c35275d368e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b70fc850e0eec4580731c4d8c74849a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a788b81405c3642b243211c75be57aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132f835c340c2aa56a61e6c50c9f3fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba5abf3558a85bdf658b7ee946585a0.png)
您最近一年使用:0次
名校
解题方法
7 . 关于
的方程
,给出下列四个命题:
①不存在实数
,使得方程恰有2个不同的实根;
②存在实数
,使得方程恰有4个不同的实根;
③不存在实数
,使得方程恰有5个不同的实根;
④存在实数
,使得方程恰有8个不同的实根.
其中正确命题的序号是____________ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2f5ce1d4c3ab18efd41533604d8dce.png)
①不存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
②存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
③不存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
④存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
其中正确命题的序号是
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,若
,
,
互不相等,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23516dcdf09e326002d1ae1a69141516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb94a713a13241f72399c39f94b65e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-02-05更新
|
365次组卷
|
6卷引用:陕西省西安市第六中学2022-2023学年高一上学期期末数学试题