解题方法
1 . (1)命题
:函数
在
上是减函数;命题
:
,
.若p和q均是假命题,求a的取值范围.
(2)已知
,
,
函数
存在零点.若p和q均为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67dfc8b194c8770edc860a611383dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988e3e071fb35d676e641d9410fe4fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b689ee9a36d9dc3f1b5ccfbe7c033c.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b171cb76b437f28b9d0cd42dab5dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e87653412088768a13fb8bd325a2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e695092b3f79f0bfa4565c012f2e10a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
2 . 已知
,函数
有四个不同的零点
,且满足:
.则下列结论中不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddac5e80e7ca994c0a122221d1c96c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43dfa66ff554122a6b54e754cd8a2081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-09-13更新
|
1877次组卷
|
8卷引用:安徽省六安市新安中学2022-2023学年高三上学期第二次月考数学试题
解题方法
3 . 已知
,
,
,则a、b、c的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef2a45773db8d347f0cfa4e4fca7fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52465e1701e31af53db44e8dcb9cc6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29131bbd5e1fd4474231136d72d769fe.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次