名校
1 . 下列命题中,真命题的是( )
A.![]() | B.平行四边形的对角线互相平分 |
C.对任意的![]() ![]() | D.菱形的两条对角线相等 |
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2 . (1)若命题“
R,
”是真命题,求实数a的取值范围;
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df03c12741f6ac84b451569c55464ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d7f43da79dd15bb26120fb845f56c8.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9cf1a69099e0e486d0000c1a105e.png)
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3 . 在同一坐标系中,对于函数
与
的图象,下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557eb194cf0abe382609f8e1325b4197.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() ![]() ![]() | D.![]() ![]() ![]() ![]() |
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4 . 已知命题
,
为真命题,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae13fef7c52cac474116117af47d21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1ee04af34ae05be8640159cf687004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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5 . 若“存在
使得
”是假命题,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66ef59c3970f3581a5ea29e21fd564d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7636e2059cbdb2975ceb9aa024529414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 已知集合
,
.
(1)若
,求实数m的取值范围;
(2)命题q:
,
是真命题,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a27ff28207bd10384f32dd15964b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c83643d7d0a51eccba7fc7c2895d106.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
(2)命题q:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a375fae50ad1b3d14c011673110256fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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7 . 已知命题
,
,命题
和
是方程
的两个实根,不等式
对任意实数
恒成立;
(1)若命题p为真命题,求实数a的取值范围;
(2)若命题
有且只有一个为真命题,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f746eb8efc0dc5b8f48f7b4c0ebeca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f5a883bfdfdb1ff27434e4686d7d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e04d2761ba25e9b3db9f87865b89d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af035663f518ab9d750a430f2308537e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625413476c10d9fe3ea23cd48b255048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d0b997c1c15b764383e9184b78ca64.png)
(1)若命题p为真命题,求实数a的取值范围;
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
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8 . (1)已知集合
,
.若
,求实数
的取值范围;
(2)若命题“
,
”为假命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480e9df91bd15c901ddda1b01aa2b72f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1263e5d902ff50efacb56fc41ffa302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2939abf9f1755ea304eeb1e73063cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b089cc11718b7f68479c62d4aaa52a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 已知命题p为“
,
”.若p为假命题,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f872a659b02d3368720e0c73d1b1386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286ddda1710da58a5c5752b5465f025d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-18更新
|
902次组卷
|
2卷引用:广东省深圳市人大附中深圳学校2023-2024学年高一上学期期中考试数学试卷
解题方法
10 . 命题
:
,
为真命题,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/d2939abf9f1755ea304eeb1e73063cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1cb4dd0d0606569baf2af1c1ee795b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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