1 . 已知
且
,命题
函数
在
上为减函数;命题
关于
的不等式
有实数解.
(Ⅰ)求命题
为真、命题
为真的
的取值范围;
(Ⅱ)如果
为真且
为假,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569675dd7b2aca2732324f4bea5c02e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74088e31acd9bc94dc8bc34e616bef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347761783913374a6db9f9308c475c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57f8665c3c4f518346893b675add981.png)
(Ⅰ)求命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429d9cd4fe4a885ac06831a7b8eb3dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ba9507faa6aaad768f19a0ebdad5a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 下列命题是全称量词命题且为真命题的是( )
A.![]() |
B.![]() |
C.所有圆的圆心到其切线的距离都等于半径 |
D.对任意![]() ![]() |
您最近一年使用:0次
2023-10-31更新
|
113次组卷
|
2卷引用:云南省曲靖市会泽县实验高级中学校2023-2024学年高一上学期9月月考数学试题
名校
3 . 如果关于
的一元二次方程
的两个解是
,
(其中
),而且不等式
的必要条件是
,那么( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1146110d4382c714c10de00dd1273b7f.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8023e1902803a7939d2aa32ba9e2d44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b88e53e6ca674b4cb92ba78dddf989.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-05-27更新
|
349次组卷
|
5卷引用:云南省楚雄东兴中学2023-2024学年高一上学期10月月考数学试题