解题方法
1 . 已知命题
,
若命题p为真命题,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44bef5e2df41b92f8aa7319710f79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfa51c73e12774d2979614a529e4689.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
2 . 已知命题“关于
的不等式
在
上恒成立”为真命题,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fff3aa931b21203a3fdcf6f2fd1f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-11-22更新
|
221次组卷
|
2卷引用:湖北省黄冈市浠水县第一中学2023-2024学年高一上学期期中数学试题
3 . 下列说法正确的有( )
A.“![]() ![]() |
B.命题“![]() ![]() ![]() ![]() |
C.“对任意一个无理数x,![]() |
D.“可以被5整除的数,末位上是0”是存在量词命题 |
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2023-11-11更新
|
119次组卷
|
2卷引用:湖北省十堰市丹江口市第二中学2023-2024学年高一下学期开学考试数学试题
解题方法
4 . 下列命题是真命题的是( )
A.若函数![]() ![]() ![]() ![]() |
B.函数![]() ![]() |
C.若定义在R上的奇函数![]() ![]() ![]() |
D.偶函数的图象必有对称轴 |
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解题方法
5 . 已知命题
“
”是“
”的充分不必要条件.
(1)若命题
为真命题,求实数
的取值范围;
(2)已知命题
,
,若命题
和命题
恰有一个为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca13af22165d77633b620d4f2b9e598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f0f47f0085389c87ac32295b148d28.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0583842bff0b9ac0a539656f88099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b7c6cadf0961ed2a40aa2fcbf074b9.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)
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6 . 已知
:实数
满足
,
:实数
满足
(其中
).
(1)若
,且
和
至少有一个为真,求实数
的取值范围;
(2)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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0de62c9620e46153a6e96ea0fbe8e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fc0a7fe5c3ff63da4c3d76ce963be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.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/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-10-03更新
|
302次组卷
|
3卷引用:湖北省襄阳市第四中学2023-2024学年高一上学期9月月考数学试题
名校
7 . 下列命题为假命题的是( )
A.命题“![]() ![]() |
B.“![]() ![]() |
C.二次函数![]() ![]() ![]() |
D.“![]() ![]() |
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2023-10-03更新
|
296次组卷
|
2卷引用:湖北省襄阳市第四中学2023-2024学年高一上学期9月月考数学试题
名校
解题方法
8 . 已知集合
,
,
.
(1)若命题
“
,都有
”为真命题,求实数
的取值集合;
(2)若
,且“
”是“
”的必要条件,求实数
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe681ad6454d8f1e4781fd7296e7993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6dbbbb35dfdfd2b02135a7a65f577bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be30f6487b6b855a37b6e35b0ac2f289.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728ca24844243ea9185f6f79c773145b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56c390fce75f3ab780eee1c36ea4a50c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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23-24高一上·湖北·阶段练习
9 . 对任意实数a,b,c,给出下列命题:
①“
”是“
”的充要条件;
②“
”是“
”的充分条件;
③“
”是“
”的必要条件;
④“a是无理数”是“
是无理数”的充要条件.
其中真命题的序号为________ .
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c2c12e403e4dab34c0590455dc0ce8.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85bcef2678925224ca8e9f58f02dd52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34308cf92d20690e6b2745d28ea5ff5f.png)
④“a是无理数”是“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b367f647833446cf684c3ddedb1592.png)
其中真命题的序号为
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解题方法
10 . 已知
:方程
有实根;
:
,使
成立,若
为假命题,
是真命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0568307515ea17d6db561ce3a292abc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6ae1c35f5334d1a0d0826d794f91d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb3e1d62d0bbb0f74c833119578b7f9.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)
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