1 . 下列命题中错误 的是( )
A.命题“![]() ![]() |
B.命题“若![]() ![]() ![]() ![]() |
C.“两直线斜率相等”是“两直线平行”的充要条件 |
D.若“p或q”为假命题,则p,q均为假命题 |
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2 . 写出命题“能找到两个奇函数
和
,使得函数
不是偶函数”的否定:“______ ”.并判断所写命题的真假:这是一个______ 命题.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d19de9707f80fe0f6e6aad2406d31a.png)
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3 . 下列命题正确的是______
①若给定命题p:
,使得
,则
:
,均有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe46868049380b61fd061698ad59dbb.png)
②若
为假命题,则p,q均为假命题
③“
”是“
”的必要不充分条件
④命题“若
,则
”的否命题为“若
,则
”
①若给定命题p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea8c817d58f773e1ab3b1f71165fd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe46868049380b61fd061698ad59dbb.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d141f34f18f4802d04ef2e4e5e803aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
④命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d09b9fc9719ff6faf32254b9d48713.png)
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4 . 下列命题正确的是( )
A.“![]() ![]() |
B.若给定命题![]() ![]() ![]() ![]() |
C.若![]() |
D.命题“若![]() ![]() ![]() ![]() |
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2022-09-30更新
|
660次组卷
|
4卷引用:2023届高考桂柳鸿图综合模拟金卷(1)文科数学试题
2023高三·全国·专题练习
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5 . 下列命题正确的是( )
A.“![]() ![]() |
B.对于命题![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.命题“若![]() ![]() ![]() ![]() |
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2022-07-05更新
|
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4卷引用:考向02 常用逻辑用语(重点)
(已下线)考向02 常用逻辑用语(重点)(已下线)2023年高考考前最后一课-数学-1陕西省榆林市定边县第四中学2023届高三上学期第二次月考理科数学试题江西省丰城中学2023届高三上学期第二次月考数学(文)试题
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6 . 给出下列四个命题,其中假命题 的个数为( )
①
,使
是幂函数;
②若
只有一个零点,则
;
③命题“若
且
,则
”的否命题为“若
且
,则
”;
④函数
在区间
上单调递增,则
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d73907aea5c6375fb9fc15c1033ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a0c3426c2ee788c5b259b26994ea2f.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb635f785541935edc8bef1c30ba5483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
③命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d97c5dd615b7752e1eb6c139891f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76478bcf12d74ea096b0a46bd6bdf649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0a2c46148393f1d7104d75e03522bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4ba63ab8d2e34c6714f87698852cff.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad96a05254c798f3e28e715c309f9b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72487c60611c53ff7b54e9e8b9931b76.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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7 . 下列四个命题中真命题的个数是( )
①“x=1”是“
”的充分不必要条件;
②命题“
,
”的否定是“
,
”;
③命题p:
,
,命题q:
,
,则
为真命题;
④“若
,则
为偶函数”的否命题为真命题.
①“x=1”是“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05611fbe265ef9e3d4a8b1821bcbc1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e67e1423322138cfc68c5c85a6215d.png)
③命题p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ccb692a97ea01b9847bb3401f8a6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e8f9a9b9a90e954c535e0d1847891c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264dab145ceba44696a6ee63b1e1549d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
④“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edb1714c9e1e5739efd858710c53bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1df335ab145ac291268ef49c1151f5.png)
A.0 | B.1 | C.2 | D.3 |
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2022-06-05更新
|
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4卷引用:易错点02 常用逻辑用语
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8 . 下列命题中为真命题的是( )
A.![]() ![]() |
B.“![]() ![]() |
C.已知p,q为两个命题,若“![]() ![]() |
D.命题“若![]() ![]() ![]() ![]() |
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9 . 下列命题正确的是( )
A.命题“若![]() ![]() ![]() ![]() |
B.若给定命题![]() ![]() ![]() ![]() |
C.已知![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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2022-05-31更新
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708次组卷
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7卷引用:易错点02 常用逻辑用语
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10 . 下列命题正确的是( )
A.命题“若![]() ![]() ![]() ![]() |
B.若给定命题p:![]() ![]() ![]() ![]() ![]() |
C.若![]() |
D.“![]() ![]() |
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|
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5卷引用:第04练 二次函数与一元二次方程、不等式