1 . 下列命题中是真命题的个数是( )
①命题“
”的否定是“
”
②设
是向量,命题“若
,则
”的逆命题是真命题
③命题
是奇函数;命题
的最小值是2,则
是真命题
④若直线
平面
,平面
平面
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef6fce1b7e6d7a650890e2435931700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54b90293b6bb0de4456da8f1dc98dc8.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778542d99ab19e2ecc0c7ef75161f133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5025f108d00d5146d3acf9bd32473a09.png)
③命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59edaab095ba98c3cfc2c2cf9e7b3f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f872fd4d10fa17d6cd95266be506500e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e29e70dc0bc2a9cf1a5feb67d439566.png)
④若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f979a27d3a09a17445561091e6655eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa807136194c18d3ac58902c67f9333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.0 | B.1 | C.2 | D.3 |
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2 . 下列命题是真命题的是( )
A.“若x,y互为相反数,则![]() |
B.“偶函数的图象关于y轴对称”是特称命题 |
C.“![]() ![]() ![]() |
D.若![]() |
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2023-01-16更新
|
317次组卷
|
2卷引用:四川省成都市蓉城名校联盟2022-2023学年高二上学期期末联考文科数学试题
3 . 下列命题中正确的个数是( )
①命题“
,
”的否定是“
,
”;
②幂函数的图象一定不会出现在第四象限;
③函数
的零点所在区间是
,且
只有一个零点;
④函数
是最小正周期为
的周期函数;
⑤
的定义域为
;
⑥在锐角三角形
中,不等式
恒成立.
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eac3ba2858adffcd1f8052cd795269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e40d2a328088960dc8cb3aff2b0cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17357220998d13f7c967bc65982e834a.png)
②幂函数的图象一定不会出现在第四象限;
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c8ed66e857f5ad738cec4150222082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9214539e367939d3f4676758334411d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99bf4ef4311fbacd7587f8098db1f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/293cb73166d5acb4749483c2b0114580.png)
⑥在锐角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce174ec854a62344f4a78c59c1a1206.png)
A.3 | B.4 | C.5 | D.6 |
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4 . 若命题
:梯形是四边形,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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5 . 陈述句“任意的
都满足性质
”的否定形式是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.任意的![]() ![]() | B.任意的![]() ![]() |
C.存在一个![]() ![]() | D.存在一个![]() ![]() |
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解题方法
6 . 已知
,则关于命题“
,使得
”的叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72bc9f84b149fc609823bdd2770cbb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30c6313d464977c51228f49d67b7c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4624a648f30189a10c8b6683b190ce5d.png)
A.假命题,它的否定形式是“![]() ![]() |
B.假命题,它的否定形式是“![]() ![]() |
C.真命题,它的否定形式是“![]() ![]() |
D.真命题,它的否定形式是“![]() ![]() |
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7 . 命题p:“
,
,等比数列
中都有
,”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e837bb2555b79c3374f6c509c8fba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f42949920904b8be46312deb5a8584.png)
A.![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() |
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2022-10-15更新
|
96次组卷
|
2卷引用:山东省潍坊五县2022-2023学年高三上学期10月联考数学试题
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8 . 设命题p:
,
,命题q:
,
.现有下列四个结论:
①p是假命题;②p的否定为
,
;
③q是真命题;④q的否定为
,
.
其中正确结论的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5594eae5e9f20c043ac08dbfdeb12d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e604a6b25bc2e5c3f24a280e33018b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b1f9a26c039a77c06f3fff2088fd91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b93667879e33800d61073541410770a.png)
①p是假命题;②p的否定为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e51fb548c786b462ea433033235b92b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9dc52e4fbffe51fa5316faa9741d899.png)
③q是真命题;④q的否定为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7776af07faf2ce7e44fd0b949455f0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529df65828a65d2e924db7d6d58ba4b4.png)
其中正确结论的个数为( )
A.1 | B.2 | C.3 | D.4 |
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9 . 命题“对于任意事件
,
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d59e58bd29770456521f0fc90ceba07.png)
A.对于任意事件![]() ![]() | B.对于任意事件![]() ![]() |
C.存在事件![]() ![]() | D.存在事件![]() ![]() |
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10 . 给出下列四个结论:
(1)命题“
”的否定是 “
”;
(2)已知三角形
中,角
为钝角,则
;
(3)将函数
的图象向右平移
个单位长度,得到函数
的图象;
(4)命题“设向量
,若
,则
”的逆命题,否命题,逆否命题中的真命题的个数为 2 .
其中正确的结论个数为( )
(1)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/649ecc4ce9869c8d937aeb86580ceafb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a43faf322f20d3e99bf14b003389977.png)
(2)已知三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b48895daa87c296d961bfd0d4fd386.png)
(3)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e960ab40ee6533d55c4eb3303bb4c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f36e503788bc66949e75b6f44b7fed7.png)
(4)命题“设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba5908c0c6b5045da76983b46de7ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea81da7f8471a097675421508bb5f76.png)
其中正确的结论个数为( )
A.1 | B.2 | C.3 | D.0 |
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