名校
1 . 命题
,
,命题
,使得
成立.
(1)若
为真,
为假,求实数
的取值范围.
(2)已知
,若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a133fa8172d41c70c25d623f3dddd15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4510aefa5be5ab1e8990a696fbe04400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6589acdbaf1f6e7bc92054fb8f608d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695cc1aa4f0734b5d7bca1d3f0dcaef4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243d7a41117351bfa38d5f1f43be4f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-12-11更新
|
1025次组卷
|
6卷引用:四川省成都市武侯区第十二中学2020-2021学年高二上学期期中数学理科试题
名校
2 . 已知命题
:
,
;命题
:
,
.
(1)写出命题
的否定;
(2)若“
”及“
∨
”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/25f67072b59bf5b9f53105433737a8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8de3460ce54eb7d478fb012c73b2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c276cd0442090049ddc455a778c3753.png)
(1)写出命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30cc102a3d288a1e0158e537b1ce5ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-06-12更新
|
334次组卷
|
3卷引用:四川省攀枝花市第十五中学2019-2020学年高二上学期期中考试数学(文科)试题
3 . 已知命题
:椭圆
的焦点在
轴上;命题
:关于
的方程
无实根.
(Ⅰ)当“命题
”和“命题
”为真命题时,求各自
的取值范围;
(Ⅱ)若“
且
” 是假命题,“
或
”是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8983d5e45fd4e401ca5557a6574040c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442a62155f68b782bbfcd5492e3d2221.png)
(Ⅰ)当“命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8b416048438c571ca40255db7de7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8b416048438c571ca40255db7de7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8b416048438c571ca40255db7de7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
4 . 命题
:
,使得
成立;命题
,不等式
恒成立.若命题
为真,则实数
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d933a1661aeb82cde28309d14d4d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7ffed3bbf2fcc4f3523a13c99b6564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cab2f87002ca6e08cd56ccd7fee140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908f046c9ea18ac566f6f8cf42456ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-07-16更新
|
1674次组卷
|
8卷引用:【全国市级联考】四川省攀枝花市2017-2018学年高二下学期期末调研检测数学(理)试题
【全国市级联考】四川省攀枝花市2017-2018学年高二下学期期末调研检测数学(理)试题河北省永清县第一中学2018-2019学年高二下学期第三次质量检测数学试题江西省赣州市南康区2019-2020学年高二下学期开学考试数学(理)试题四川省棠湖中学2019-2020学年高二下学期期末模拟考试数学(理)试题四川省棠湖中学2019-2020学年高二下学期期末模拟考试数学(文)试题(已下线)对点练03 全称量词与存在量词-2020-2021年新高考高中数学一轮复习对点练四川省阆中中学2020-2021学年高三上学期开学考试数学(文)试题江西省宁冈中学2020-2021学年高二上学期期中考试数学(理)试题
5 . 下列说法中正确的是
A.若命题![]() ![]() ![]() ![]() |
B.若“![]() ![]() |
C.已知![]() ![]() ![]() |
D.命题“若![]() ![]() |
您最近一年使用:0次