名校
1 . 下列四个命题中,是假命题的是( )
A.![]() ![]() |
B.![]() ![]() |
C.若x>0,y>0,则![]() |
D.若![]() ![]() |
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2 . 下列四个命题中真命题的个数是( )
①已知非零向量
,
,
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5548846d7bc575235c60cd49b3cc7743.png)
②已知
,
是两个互相垂直的单位向量,若向量
与
的夹角为锐角,则k的取值范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
③已知向量
,
,则向量
在向量
上的投影向量为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16217f616b5123987dd2fdd53f4c7399.png)
④已知
,
,
,
可以作为平面向量的一组基底
①已知非零向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afa49dbaa99a0d7a7a6d18b3fe42091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd5b976df5a24e2f106dc0e46bf8652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5548846d7bc575235c60cd49b3cc7743.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51dbf7fb9e71618bf5031f91c8d86b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75d6886724cfe164028aa4d151aa98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
③已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ee3423878ecb85894d02d79e7e08d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904b8018fb826e890bb5503c952f40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16217f616b5123987dd2fdd53f4c7399.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189a38f074b1d06034774eaeb7e489ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6f144b47b7f6c8570782ab9c79e51c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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解题方法
3 . 下列命题为真命题的是( )
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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4 . 判断下列命题的真假,其中真命题的个数是( )
(1)“
”是“
”的充分条件;
(2)“
”是“
”的必要条件;
(3)“
”是“
”的充要条件;
(4)“
是无理数”是“
是无理数”的充分不必要条件;
(5)“
”是“
”的充分条件.
(1)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.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/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
(4)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbb9c306da912756c1292f5a9988d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(5)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45f3e82b25339b98d64f6c52084c530.png)
A.0个 | B.1个 | C.2个 | D.4个 |
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2023-09-30更新
|
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3卷引用:北京拔萃双语学校2022-2023学年高一上学期期中数学试题
北京拔萃双语学校2022-2023学年高一上学期期中数学试题福建省福州市平潭县新世纪学校2023-2024学年高一上学期期中数学试题(已下线)专题01 期中真题精选【考题猜想】-2期中考点大串讲(苏教版2019必修第一册)
名校
5 . 已知命题p:若
,则
;命题q:若
,则
.则下列是真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5396b403029b41214dd52225eb3c0031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc597b4887651e79f55670147a8d36b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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2卷引用:四川省绵阳市南山中学2022-2023学年高二下学期期中考试数学(文)试题
名校
6 . 下列三个命题中,真命题的个数是__________ 个
①
,②
,③
为方程
的根
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeef9a30e31c6ebf66388ea99cdf150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517dd866c8d417fbdd33c62dc1b18edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32676f62a81515b22cd3f6b79047e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109c66ef5235196b54603106e297a6d0.png)
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5卷引用:浙江省宁波市三锋教研联盟2022-2023学年高一上学期期中联考数学试题
名校
7 .
的内角
,
,
的对边分别为
,
,
,则下列命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.已知![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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|
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4卷引用:山东省青岛第二中学2022-2023学年高一下学期期中数学试题
山东省青岛第二中学2022-2023学年高一下学期期中数学试题湖南省株洲市第一中学2021-2022学年高一下学期期中考试数学试题重庆市缙云教育联盟2023届高三第三次诊断性检测数学试题(已下线)模块6 平面几何篇 第1讲:向量合成定理与三角形四心【讲】
8 . 已知下列关于函数
的四个命题中,有且仅有一个假命题,则该命题是( )
甲:该函数图象的一个对称中心为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660583e303ec8cc21ff15a30125e9b4.png)
乙:该函数图象的一条对称轴方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c54f212fc8b30b78c3c9913081f8389.png)
丙:该函数在区间
上单调递减
丁:该函数图象向左平移
个单位长度得到一个奇函数的图象
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8733a108891d7fe5fff5d6e9b2ce3fe7.png)
甲:该函数图象的一个对称中心为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660583e303ec8cc21ff15a30125e9b4.png)
乙:该函数图象的一条对称轴方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c54f212fc8b30b78c3c9913081f8389.png)
丙:该函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862353a579b6e50f4156dabd132bd92f.png)
丁:该函数图象向左平移
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
A.甲 | B.乙 | C.丙 | D.丁 |
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9 . 在空间中,有命题
:平行于同一条直线的两直线平行;命题
:垂直于同一条直线的两直线平行.则下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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|
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10 . 给定下列命题:①若
,则方程
有实数根;②“若
,则
或
”;③“矩形的对角线相等”的逆命题;④“若
,则x,y中至少有一个为0”的否命题.其中真命题的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abea6224022b1908702d845fb4759f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca42301f789282952f4f8f2433c17076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d09b9fc9719ff6faf32254b9d48713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed6f12ee54d72aebccd5a0444fdec8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
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