解题方法
1 . 已知
:直线
与直线
互相垂直,则
是
的__________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f257c8ca1a0e18d4f6d876b5391a3ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ea8096fb03a5f9bbe9761a02e38554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
名校
2 . 下列各结论中,正确的是______ .
①“
为真”是“
为真”的充分不必要条件;
②“
为假”是“
为假”的充分不必要条件;
③“
为真”是“
为假”的必要不充分条件;
④“
为真”是“
为假”的必要不充分条件.
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
您最近一年使用:0次
2022-01-26更新
|
206次组卷
|
2卷引用:甘肃省兰州市第一中学2021-2022学年高二上学期期末考试数学(文)试题
名校
3 . 已知下面四个命题:
①“若
,则
或
”的逆否命题为“若
且
,则
”;
②“
”是“
”的充分不必要条件;
③命题P:存在
,使得
,则
:任意
,都有
;
④若P且q为假命题,则p,q均为假命题.
其中真命题有____________________ .
①“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c581913b2d08b871608e939f29cb24b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059eafaba1bb419030b566813c5bb04a.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d141f34f18f4802d04ef2e4e5e803aba.png)
③命题P:存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85685dd80e4f513558a36ccfbf21daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f292aee4920c4e5c5c0f25ed9ea83f4b.png)
④若P且q为假命题,则p,q均为假命题.
其中真命题有
您最近一年使用:0次
2021-09-06更新
|
455次组卷
|
4卷引用:【全国百强校】甘肃省兰州市第一中学2019届高三9月月考数学(理)试题
【全国百强校】甘肃省兰州市第一中学2019届高三9月月考数学(理)试题(已下线)1-3 简单的逻辑联结词、全称量词与存在量词(高效训练)-2019版导学教程一轮复习数学(人教版)西藏昌都市第三高级中学2020-2021学年高二上学期期末数学试题广西玉林市第十一中学2021-2022学年高二下学期3月月考数学试题(文科)
名校
4 . 设
或
;
或
,则
是
的________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfdd1567e1fb23a640a39df693073fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d952efc680fc6028777b19e8fb8ac7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d852e7a29995849407922855c7e3aea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da6d82d173ad18cc040e94c925b5ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
您最近一年使用:0次
2020-08-11更新
|
1424次组卷
|
10卷引用:【全国百强校】甘肃省兰州大学附属中学2018-2019学年高二第二学期期中考试数学(文科)试题
【全国百强校】甘肃省兰州大学附属中学2018-2019学年高二第二学期期中考试数学(文科)试题甘肃省天水市甘谷第一中学2019-2020学年高二上学期第二次月考数学(文)试题【全国百强校】新疆乌鲁木齐市第七十中学2018-2019学年高二下学期第一次月考数学(文)试题人教B版(2019) 必修第一册 过关斩将 第一章 集合与常用逻辑用语 本章达标检测(已下线)[新教材精创]第二章常用逻辑用语练习-苏教版高中数学必修第一册(已下线)第一章+集合与常用逻辑用语(基础过关)-2020-2021学年高一数学单元测试定心卷(人教A版2019必修第一册)第一章+集合与常用逻辑用语(能力提升)-2020-2021学年高一数学单元测试定心卷(人教B版2019必修第一册)山东省聊城市聊城第一中学2022-2023学年高三上学期12月月考数学试题第一章 预备知识 单元检测-2022-2023学年高一上学期数学北师大版(2019)必修第一册陕西省西安市周至县第四中学2021-2022学年高二上学期期末(暨下学期开学考试)理科数学试题
名校
5 . 下列说法正确的是__ .
(1)对于命题
,使得
,则
,均有
;
(2)“
”是“
”的充分不必要条件;
(3)命题“若
,则
”的逆否命题为:“若
,则
”;
(4)若
为假命题,则
,
均为假命题.
(1)对于命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbaf82fe2b22d44492a001a7a02466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1464643c24dbc008f158ca95bf845e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cd44731d509352f907c9773a42cab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092e1a7037ae242571c28ee71ac50b15.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
(3)命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8a2a94168af9b16ce89271a5d8dc6b.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2020-09-12更新
|
407次组卷
|
5卷引用:甘肃省白银市会宁县第二中学2019--2020学年度第二学期高二期末数学试题
名校
6 . “
”是“
”的______ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
您最近一年使用:0次
2019-12-11更新
|
638次组卷
|
6卷引用:甘肃省甘南藏族自治州合作第一中学2021-2022学年高一上学期期末考试数学试题
甘肃省甘南藏族自治州合作第一中学2021-2022学年高一上学期期末考试数学试题上海市晋元高中2018-2019学年高一上学期10月月考数学试题天津市第九十五中学2019-2020学年高二下学期3月线上测试数学试题河北省艺术职业中学2020-2021学年高一上学期第一次月考数学试题(已下线)专题1.2+常用逻辑用语(A卷基础篇)-2020-2021学年高一数学必修第一册同步单元AB卷(新教材人教B版)(已下线)第1章 集合与常用逻辑用语(基础、典型、新文化、压轴)分类专项训练-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
名校
7 . 下列有关命题的说法正确的是___ (请填写所有正确的命题序号).
①命题“若
,则
”的否命题为:“若
,则
”;
②命题“若
,则
”的逆否命题为真命题;
③条件
,条件
,则
是
的充分不必要条件;
④已知
时,
,若
是锐角三角形,则
.
①命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bad6987e8abfbf07d6a2650483d2a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bad6987e8abfbf07d6a2650483d2a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
②命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b9d5aaaceaa3ac514d17fcfefbf9b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce22028b0472ba0c4db9c3179e963ad2.png)
③条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6b1aa287ff58292b8ca13167a7423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c829d368dd8162aba35c5950d2a9e781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6c850df0d8e728fc545044cdd6a0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a673984ab88416f50a8496242427cdbe.png)
您最近一年使用:0次
2019-08-22更新
|
1013次组卷
|
9卷引用:甘肃省甘南藏族自治州合作第一中学2018-2019学年高二下学期期末考试数学(文)试题
甘肃省甘南藏族自治州合作第一中学2018-2019学年高二下学期期末考试数学(文)试题【全国百强校】江苏省清江中学2018届高三学情调研考试数学试题【全国百强校】宁夏石嘴山市第三中学2019届高三上学期期末考试数学(文)试题(已下线)专题2 常用逻辑用语(讲)-《2020年高考一轮复习讲练测》(江苏版)(已下线)专题2 常用逻辑用语(练)-《2020年高考一轮复习讲练测》(江苏版)(已下线)专题1.2 命题及其关系、逻辑联结词、充分条件与必要条件-《2020年高考一轮复习讲练测》(浙江版)(练)辽宁师范大学附属中学2018-2019学年高三上学期第一次模块考试数学(理)试题安徽省六安二中河西校区2018-2019学年高三上学期第三次统测文科数学试题(已下线)黄金卷04(2024新题型)
名校
8 . 下列结论:
“直线l与平面
平行”是“直线l在平面
外”的充分不必要条件;
若p:
,
,则
:
,
;
命题“设a,
,若
,则
或
”为真命题;
“
”是“函数
在
上单调递增”的充要条件.
其中所有正确结论的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876959b9f90f2379cf3d0927a8e31005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bded4e08a5c75fd82f1868c9f4c5b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3719d2ca3c5877bafc18f58c1fdf4b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4690a619a829c621fb7cd1e98df13f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdf492b48e5da4602f2bde199deae4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3bc9e7fe40882f2f79bcf8d87a7f031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67773252101fb3704fdac88b5f3f1bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bea9391c115618bb84a7aa3da8a242d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dbdf0c087ab6be44595a5ca285acbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd594e99f82b7736c44e18b2721e607f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10baec9d907f3ccb3f64ad3de53a589d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74269cfb503e736149e1ac3165fcbafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89e1ee3b8e2751f354aa5ab7135c75b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b3de9d6894829d7de515544cd6cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fe868d4152f599a9ae5a0dae150cb0.png)
其中所有正确结论的序号为
您最近一年使用:0次
2019-03-18更新
|
638次组卷
|
3卷引用:甘肃省平凉市静宁县第一中学2019-2020学年高二上学期期中数学(文)试题
9 . 已知角
是
的内角,则“
”是“
”的__________ 条件(填“充分不必要”、“必要不充分”、“充要条件”、“既不充分又不必要”之一).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d23b9cf56fd0f72c5b3450280cf2556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0b9b24c44f56961262b7ed05b5f0cf.png)
您最近一年使用:0次
2017-11-20更新
|
852次组卷
|
2卷引用:甘肃省武山一中2017-2018学年高二上学期期末考试数学理试题
14-15高二上·山东淄博·期末
名校
10 . 下列命题中,真命题的有________ .(只填写真命题的序号)
①若
则“
”是“
”成立的充分不必要条件;
②若椭圆
的两个焦点为
,且弦
过点
,则
的周长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a39aeebd0ae3b2d972782afb0c861a.png)
③若命题“
”与命题“
或
”都是真命题,则命题
一定是真命题;
④若命题
:
,
,则
:
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://img.xkw.com/dksih/QBM/2014/3/27/1571580761915392/1571580767723520/STEM/f0b45eb0bdca4a22ba0160cd39d102ff.png?resizew=39)
②若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fbdcf5ed16ea6ae22fe7446d9aab97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d25313067f3e11f68da496344c4956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0169f9fd16b794f51939cb1e8c99dcdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a39aeebd0ae3b2d972782afb0c861a.png)
③若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
④若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://img.xkw.com/dksih/QBM/2014/3/27/1571580761915392/1571580767723520/STEM/a8c28433120a45308e98228629ebb363.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2014/3/27/1571580761915392/1571580767723520/STEM/760bc97d69564f61aa77e031e571cbdd.png?resizew=89)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeaf0c7c8aac29d2b3704f4416724567.png)
您最近一年使用:0次