名校
解题方法
1 . 有以下结论:
①若函数
对任意实数
都有
,则
图象关于直线
对称;
②函数
与
的图象关于直线
对称;
③对于函数
(
,且
)图象上任意两点
,
,一定有
;
④
是使得
(
且
)成立的充分不必要条件.
其中正确结论的序号为_________ .
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7852a186f6207db185658e9e00ca0eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290dfa43bcecc055837374f00dce6fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67fbb13f7d4b8abb69b93a398fb66ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
③对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ff35f3b50966a5e3cbb0b5977af7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3b54e0dcdc081d45fb3df933cddc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7a1783349936cc7254a4a8694c6812.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4175a7316c311be8544ad68a0a9fcf77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
其中正确结论的序号为
您最近一年使用:0次
2020-12-16更新
|
413次组卷
|
3卷引用:安徽省六安市第一中学2020-2021学年高一上学期第二次段考数学试题
2020高三·全国·专题练习
2 . 下列结论: ①若命题
,
;命题
,
.则命题“
”是假命题;
②已知直线
,
,则
的充要条件是
;
③“设
、
,若
,则
”的否命题为:“设
、
,若
,则
”.
其中正确结论的序号为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbaf82fe2b22d44492a001a7a02466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f160d875700c3e047273fa7dd8b09d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a6fc004861e4a5780736acea3a9e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4ff4ee36111cbef3e6076e6354dcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e48ebdd742cb5d310c21a384d599bc6.png)
②已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9f38280680b69bfdb0fb2b5550142b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ee77ea2e97e1dc66e84c124aa11116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a9306db4c13f449bb6f41fc97865dc.png)
③“设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce738dd9552922409517772acb1c0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e952944ec2c6d9012a4d0c17c2152c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60757c09dbb2b566f91b4a90cf297145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6ee3073dac6fa9ccd58cd084ca2998.png)
其中正确结论的序号为
您最近一年使用:0次
3 . 给出下列四个命题:
①函数
的图像的一条对称轴是直线
;
②若命题
:“存在
”,则命题
的否定为:“对任意
”;
③若
,则
;
④“
”是“直线
与直线
互相垂直”的充要条件.
其中正确命题的序号为_________ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed7c53d765ce9c82f7b2a78d9275be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
②若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75bb98733d31cdee8d0547af2801c8b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a57da9f5f70436610fadbf66d4b274.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd940a1fab0e50b423c879af9934e176.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289ce704ab8d876aa9756cf3ae972a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af716c494fc62f7d7d60ad4aaf6b7e65.png)
其中正确命题的序号为
您最近一年使用:0次
20-21高一·全国·课后作业
4 . 下列说法不正确的是________ .(只填序号)
①“x>5”是“x>4”的充分条件;
②“xy=0”是“x=0且y=0”的充分条件;
③“-2<x<2”是“x<2”的充分条件.
①“x>5”是“x>4”的充分条件;
②“xy=0”是“x=0且y=0”的充分条件;
③“-2<x<2”是“x<2”的充分条件.
您最近一年使用:0次
5 . 已知“
是
的充分不必要条件”、“
是
的必要不充分条件”、“
是
的充要条件”,则①
是
的充分不必要条件;②
是
的充分不必要条件;③
是
的必要不充分条件;④
是
的必要不充分条件其中正确结论的序号为________ .
![](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/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
您最近一年使用:0次
2019-09-19更新
|
590次组卷
|
4卷引用:【新教材精创】1.2.1 必要条件与充分条件(2课时) 练习(2)-北师大版高中数学必修第一册
【新教材精创】1.2.1 必要条件与充分条件(2课时) 练习(2)-北师大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(章末测试)-2020-2021学年一隅三反系列之高一数学新教材必修第一册(人教版A版)北师大版 新教材 2.1必要条件与充分条件2北师大版 新教材 2.1必要条件与充分条件练习
6 . 对于任意实数
,①“
”是“
”的充分条件;②“
是无理数”是“
是无理数”的必要条件;③“
”是“
的充分条件;④“
”是“
”的必要条件,其中正确结论的序号为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c2c12e403e4dab34c0590455dc0ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5821f59d12217af9a3804379c8231f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241b9415a76164563eda432ad6e11f6f.png)
您最近一年使用:0次
2019-09-19更新
|
572次组卷
|
4卷引用:【新教材精创】1.2.1 必要条件与充分条件(2课时) 练习(2)-北师大版高中数学必修第一册
【新教材精创】1.2.1 必要条件与充分条件(2课时) 练习(2)-北师大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(章末测试)-2020-2021学年一隅三反系列之高一数学新教材必修第一册(人教版A版)北师大版 新教材 2.1必要条件与充分条件2北师大版 新教材 2.1必要条件与充分条件练习
7 . 下列三个说法:①若命题
,
,则
,
;
②“
”是“
为偶函数”的充要条件;
③命题“若
,则
”是真命题.
其中说法正确的是________ (填序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fac11dd95cb4b78adb817fad02dedb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264dab145ceba44696a6ee63b1e1549d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cd44731d509352f907c9773a42cab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1c77d129b56255baf3d76eb2a6c2ff.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edb1714c9e1e5739efd858710c53bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55ba8847256e2a18e6cc44bd847df00.png)
③命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15dc6143e7722e287e59f7c72a0eeb1.png)
其中说法正确的是
您最近一年使用:0次
名校
8 . 下列说法中正确的序号是____________ (写出所有正确命题的序号)
(1)“
为实数”是“
为有理数”的充分不必要条件;
(2)“
”是“
”的充要条件
(3)“
”是“
”的必要不充分条件;
(4)“
,
”是“
”的充分不必要条件;
(5)
的三个内角为
.“
”是“
”的充要条件
(1)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d60a700a5a306f650c0bb85c07d0fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
(3)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8034dddd265a186e29172623e3b9eadf.png)
(4)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68a8d9081c78f75f3e68a98e55a6caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99074f989e74d5ff306b4b7b7a379c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5336c043d7f27ad61e8a5593b792e40.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
您最近一年使用:0次
名校
9 . 下列说法中所有正确命题的序号是__________ .
①“
”是“
”成立的充分非必要条件;
②
、
,则“
”是“
”的必要非充分条件;
③若一个命题的逆命题为真,则它的否命题一定为真;
④设等比数列
的前
项和为
,则“
”是“
”成立的充要条件.
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0973815df3264c67f94eccde1c279ea.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc03d6198a94cfdf5ba108fd4ae668e2.png)
③若一个命题的逆命题为真,则它的否命题一定为真;
④设等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179513ce80436471efbe1d9b31735f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f00dae44d94b0499bd40de73772b4b.png)
您最近一年使用:0次
2017-12-20更新
|
581次组卷
|
5卷引用:安徽省滁州市定远县重点中学2019-2020学年高二下学期期中数学(理)试题
安徽省滁州市定远县重点中学2019-2020学年高二下学期期中数学(理)试题江苏省如东高级中学2017-2018学年高二上学期期中考试数学试题(已下线)黄金30题系列 高二年级数学(理) 小题易丢分(已下线)黄金30题系列 高二年级数学江苏版 小题易丢分(已下线)黄金30题系列 高二年级数学(文) 小题易丢分
解题方法
10 . 判断一下说法正确的是 ( )
A.“![]() ![]() |
B.如果![]() ![]() |
C.函数![]() |
D.函数![]() ![]() ![]() |
您最近一年使用:0次