2013·甘肃·一模
1 . 下列命题中,是真命题的是
A.![]() | B.![]() |
C.![]() | D.![]() |
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13-14高二上·陕西西安·期末
2 . 命题“若
,则
”的逆否命题是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19acddff4cb3831a8e8974e532c05242.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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2012·湖北·二模
3 . 下列4个命题:(1)命题“若
,则
”;
(2)“
”是“对任意的实数
,
成立”的充要条件;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(3)设随机变量
服从正态分布N(0,1),若
;
(4)命题“
,
”的否定是:“
,
”
其中正确的命题个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6be67cbce81d7e50115e040bcd3dba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a715455d329b7051c9ee41041ccaa4c.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9ad3c458881f70de6902d1c5a603cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940a98663534dc8be7917bcd5b04a801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(3)设随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48e54f2ce3af12221046e3306aab395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f97e1a27742ff010fdeab17cedbe05.png)
(4)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786921d44625369b0e89c3020f41fb2b.png)
![](https://img.xkw.com/dksih/QBM/2012/4/27/1570845596786688/1570845602013184/STEM/e4d85dcd4f9d4a5bad15165877daeae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d05bfb81fb639a2697789174ac6f21.png)
![](https://img.xkw.com/dksih/QBM/2012/4/27/1570845596786688/1570845602013184/STEM/10127d92010b4cfb9f4b9501b912db55.png)
其中正确的命题个数是
A.1 | B.2 | C.3 | D.4![]() |
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2012·海南省直辖县级单位·一模
4 . 以下正确命题的个数为
①命题“存在
”的否定是:“不存在
”;
②函数
的零点在区间
内;
③若函数
满足
且
,则
=1023;
④函数
切线斜率的最大值是2.
①命题“存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e9afe7750a0649a3ccd6c8fb4e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b575835b237c635e5e0f808cc7b341e.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd2fbd3408af0b85d0266f40ea04144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a59a58bea5cd9d78c66dd7d6730d5f2.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df0ddc9dc1d3928ad558669f792d16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ac9c14ec283066e7c897dbdda951e1.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e1d0b08c8f9eb98175214071d4a8f5.png)
A.1 | B.2 | C.3 | D.4 |
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10-11高三·云南昆明·阶段练习
5 . 命题“若
,则
”的逆否命题是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3019b662e5dc2750bb6f9199d3250f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7878dac7a8d11067d85dc5afa2be38fd.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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10-11高三上·辽宁沈阳·阶段练习
名校
6 . 下列判断错误的是
A.命题“若q则p”与命题“若非p则非q”互为逆否命题 |
B.“![]() ![]() |
C.对于命题p:![]() ![]() ![]() ![]() ![]() |
D.命题“![]() ![]() ![]() |
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10-11高二·山西吕梁·阶段练习
7 . 给出下列四个语句:
①两条异面直线有公共点;
②你是武威二中的学生吗?
③x∈{1,2,3,4};
④方向相反的两个向量是共线向量.
其中是命题的语句共有
①两条异面直线有公共点;
②你是武威二中的学生吗?
③x∈{1,2,3,4};
④方向相反的两个向量是共线向量.
其中是命题的语句共有
A.4个 | B.3个 | C.2个 | D.1个 |
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11-12高三上·广西桂林·阶段练习
8 . 已知
直线,
是平面,给出下列命题:(1)若
;②若
;③若
;④若a与b异面,且
相交;⑤若a与b异面,则至多有一条直线与a,b都垂直.其中真命题的个数是
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/d762518b9d944d8487bec8461754e22f.png)
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/daa3a369a46f4640a0ac495a2dd1e583.png)
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/c8fac8f8043b4721851d263bd6d7bc3f.png)
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/bfa3e0b066664c5680ac7011aadfcad4.png)
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/32039f8e9ab9446bb15bb7c91cdc1392.png)
![](https://img.xkw.com/dksih/QBM/2011/3/3/1570024095334400/1570024100536320/STEM/46c3c32910254abcbccf33b1b6033cf3.png)
A.1 | B.2 | C.3 | D.4 |
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真题
名校
9 . 有四个关于三角函数的命题:
:
x
R, ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db93f5ae179d970e478cb43b8030291c.png)
+![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baac50f844ebc073cbd706eac150c4e6.png)
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
:
x、y
R, sin(x-y)=sinx-siny
:
x![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
,
=sinx
: sinx=cosy
x+y=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
其中假命题的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408c3726fe0b0698826dc623f269e179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db93f5ae179d970e478cb43b8030291c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baac50f844ebc073cbd706eac150c4e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408c3726fe0b0698826dc623f269e179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b21b872313f7d8c5b606981f954a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49dac463bbb7375dbf8e2246f9a6f0d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53496ae2397150370142b5195a1a39c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce56299c259c2bf0fb56c16bfbb81e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc119550ce4fc5f3d1daf996e7243bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef73aff3fe470e367f4af24fdfff3df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
其中假命题的是
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2016-11-30更新
|
856次组卷
|
12卷引用:2009年普通高等学校招生全国统一考试理科数学(宁夏卷)
2009年普通高等学校招生全国统一考试理科数学(宁夏卷)2009年普通高等学校招生全国统一考试文科数学(宁夏卷)(已下线)2012届浙江省台州市台州中学高三上学期第三次统练理科数学四川省南充市嘉陵一中2018届高三上学期期中考试理数学试题吉林省普通中学2018届高三第二次调研测试数学理试题【全国百强校】贵州省遵义航天高级中学2018届高三上学期第四次模拟考试数学(理)试题2020届河南省平顶山许昌济源高三第一次质量检测数学(文)试题湖北省黄冈联考协作体2018-2019学年高三上学期期中理科数学试题北京市第十四中学2022届高三上学期期中考试数学试题吉林省长春市十一高中2021-2022学年高一上学期期末数学试题(已下线)专题02 逻辑用语与命题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)山东省泰安市2023-2024学年高三上学期11月期中考试数学试题
10 . 命题“数列
前
项和是
的形式,则数列
为等差数列”的逆命题,否命题,逆否命题这三个命题中,真命题的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a3250c1ce52b36c7a1e0a3e93432e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次