1 . 已知函数
在定义域
上是单调函数,若对任意
,都有
,则
的值是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a9a44f3f2082ac3973deac93887c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf37fc24c8a9f21f76ab514723cba811.png)
您最近一年使用:0次
2020-08-17更新
|
537次组卷
|
4卷引用:四川省雅安市2019-2020学年高二下学期期末考试数学(文)试题
2 . 函数
图象如图所示(
,
都是极值点),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0aa75602b95a0cd594c7b11a3de8d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/ecd5cad5-fcb9-4f93-8608-887f4fea6de5.png?resizew=168)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeade371a7dbd196235cc1d14397c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0aa75602b95a0cd594c7b11a3de8d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/ecd5cad5-fcb9-4f93-8608-887f4fea6de5.png?resizew=168)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 已知函数
为二次函数,满足
,且
.
(1)求函数
的解析式;
(2)若方程
在
上有两个不同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17ee5f43412795671704ab0e8d0b2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba7ed8f595fc6bccb2eac26957024be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d4e5d2376303f26654807bf6f66516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-08-18更新
|
355次组卷
|
3卷引用:四川省南充高级中学2016-2017学年高二下学期期末考试数学(文)试题
4 . 给出下列四个命题:
(1)若
为假命题,则
、
均为假命题;
(2)命题“
”为真命题的一个充分不必要条件可以是
;
(3)已知函数
则
;
(4)若函数
的定义域为R,则实数
的取值范围是
.
其中真命题的个数是( )
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6944539e22a089a80168e2878c9ecc52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589883a5d97f0f7ee75dd0c97e9406bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289688ca788f9edb554836fd083313f2.png)
(4)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6810e2bb8de3e83fd73a4f5690de07b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389d79319d0694c3d75bbaf19d0a8581.png)
其中真命题的个数是( )
A.0 | B.1 | C.2 | D.3 |
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