1 . 已知
;
.
(1)若
,
为真,求
的取值范围;
(2)已知命题“若
,则
”为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e60221f412123faa7d8c986b90df07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f189543100a9780707b8a439f5a58f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知命题“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)
您最近一年使用:0次
2 . 已知
;
关于
的方程
的解集至多有两个子集.若
为假命题,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de7734c7754fc7168c149b9c295441b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcb4df710cf7fc5a4159380ae5451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
名校
3 . 下列说法中,正确的序号为___________ .
①命题“
”的否定是“
”;
②已知
,则“
”是“
或
”的充分不必要条件;
③命题“若
,则
”的逆命题为真;
④若
为真命题,则
与
至少有一个为真命题;
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca4ca1588eba01b231315b1c7d20a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bfe039612ffb5d60214d5d6045f4a.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cfaf8a1aac11be28a46922184c08ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57d087912775d73297b3614d3806ab29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc34a2d14b2f914017ae7b2a15ab60e.png)
③命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bcddc2ece6bcde9355e222e1cf9f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
名校
4 . 已知命题
:“关于
的方程
有实数根”,命题
:“
”,命题
:“
”.
(1)若
是真命题,求
的取值范围;
(2)若
是
的充分不必要条件,求
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/2d5707186257494f1fea86066f2778b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bad97b34b0879b8c3714f905c4a8193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130b1209318cc9a9ea61080b85dd6841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ddd0587919b96085ea8cb9667a4e1e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](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/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2021-03-05更新
|
457次组卷
|
4卷引用:广东省珠海市2020-2021学年高二上学期期末数学试题
名校
解题方法
5 . 已知下列几个命题:其中结论正确的是( )
A.![]() ![]() ![]() ![]() ![]() |
B.“![]() ![]() |
C.已知命题![]() ![]() ![]() ![]() |
D.双曲线![]() ![]() |
您最近一年使用:0次
6 . 已知命题p:实数m满足
,其中
;命题q:点(1,1)在圆
的内部.
(1)当
,
为真时,求m的取值范围;
(2)若
是
的充分不必要条件,求 a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7850184f796210d668c52a098f1aeae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b3cacc24c7cd34a4a7c20292ad5382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a311b286fb784dd4d6d994bf6aca0bff.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575feaa04c7836a3743306b6378f9cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30cc102a3d288a1e0158e537b1ce5ad8.png)
您最近一年使用:0次
7 . 设
:“关于
的不等式
的解集为
”;
:“函数
在区间
上有零点”.
(1)若
为真命题,求实数
的取值范围;
(2)若
且
为假命题,
或
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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0c532c8d547e483fae534876ef141c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d022c360e059a6fdd3efd58baff6f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](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/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
8 . 命题p:奇函数的图象一定过坐标原点,命题q:对任意的向量
,
,都有
,则下列命题是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560ee2894ba8c5cee6633430cc8b3b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f1a8e551cba7ec9f451749f60e628d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424e11ccd82c7e91ba872fc0fa724952.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-02-22更新
|
68次组卷
|
2卷引用:陕西省汉中市2020-2021学年高二上学期期末理科数学试题
9 . 设命题
函数
是
的单调递减函数,命题
函数
是偶函数.则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808bd2fc4b344e7669fca65b4fa122df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知命题
若
,则
,命题
若
,则
则下列命题中真命题( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ccd5941a5a85812d8c5a14291f92cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b95d36ec16dda11d0dedcbe221fb03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39f8269ee6226045f1686d6344b6312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7eac0f1ef144fd45c6ba1e957d2c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5abe56c019ac914e1fcde1865a747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520c3a1c9cd10a0a7ad53a6aafc77b40.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次