1 . 已知命题
:
,
是真命题,那么实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d52d55f81c8d352feab5afbc38ba2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 设有下面四个命题:
:抛物线
的焦点坐标为
;
:
,方程
表示圆;
:
,直线
与圆
都相交;
:过点
且与抛物线
有且只有一个公共点的直线有2条.
那么,下列命题中为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d73907aea5c6375fb9fc15c1033ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de49c023dc25306cf7b05b89bd2eba8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b21b872313f7d8c5b606981f954a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a1a1d06e7c43bf01d7fc8aa92fad25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8fee3cca4e6bd9a6167e1939c4ab47f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930ebec46ce5da1234b956e8c77876b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc119550ce4fc5f3d1daf996e7243bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1fca783af275bc3ac96f0f5724d269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca3b0aa32a947786e56e03358ed019d.png)
那么,下列命题中为真命题的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-26更新
|
42次组卷
|
2卷引用:山西省吕梁市2020-2021学年高二上学期期末数学(文)试题
3 . 若
为实数,则
是
的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6153e1b31e8e30e44331b9b979e9cc33.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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2021-01-26更新
|
88次组卷
|
2卷引用:山西省吕梁市2020-2021学年高二上学期期末数学(文)试题
4 . 已知命题
有两个不等的实根;命题q方程
表示双曲线,若
为假命题,
为真命题,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a2b092e581c96d430ed98c64dd9eda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f683958b5d4c11e56969d452e239bc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
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2021-01-26更新
|
142次组卷
|
3卷引用:山西省吕梁市2020-2021学年高二上学期期末数学(文)试题
5 . 命题“若
,则
且
”的逆命题是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d18a0bcf32f281d380de10941da6975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c412d5329ba909164329663b7eecdfe.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
您最近一年使用:0次
6 . 已知命题
,
,则命题p的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbaf82fe2b22d44492a001a7a02466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9e29ea4214cd80b02861902f48bd7e.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2021-01-24更新
|
52次组卷
|
2卷引用:山西省吕梁市2020-2021学年高二上学期期末数学(理)试题
7 . 设命题p:实数x满足
,命题q:实数x满足
.
(1)若
,
为真命题,求x的取值范围;
(2)若
是
的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e1c83f81a05c281f91cb858bbcc165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41484c2fc9b0d1a17b04db9d52254d02.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
您最近一年使用:0次
2021-01-24更新
|
159次组卷
|
2卷引用:山西省吕梁市2020-2021学年高二上学期期末数学(理)试题
8 . 设命题
:实数
满足
;命题
:曲线
表示双曲线.若p为假命题,
为真命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143e9daff5e4f18d8791a7d508d60642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357dcfc6aadbb79cb58ab672c2a30b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
9 . 命题“
,
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014ad67738b68ab6fb14b933cd1199eb.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
10 . 设命题
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/174e2e528833119021000abaeaa7aed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c452263cf5b737c11f069c9cd61881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次