名校
1 . 有如下命题:
①“
”是“
”成立的充分不必要条件;
②
,则
;
③
对一切正实数
均成立;
④“
”是“
”成立的必要非充分条件.
其中正确的命题为___________ .(填写正确命题的序号)
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
②
![](https://img.xkw.com/dksih/QBM/2016/5/26/1572650637590528/1572650643382272/STEM/801b0442b5224f69a4d387a37f33a152.png?resizew=96)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf3deba9989a4e13f36816519fcf27d.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a661380bb3fe19bc3c46a4eb16934a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13b34c99b942b8dd2cbd88ed017de36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481ee0d1e39e92a4732eea90225eb94c.png)
其中正确的命题为
您最近一年使用:0次
2016-12-04更新
|
1333次组卷
|
5卷引用:人教A版(2019) 必修第一册 第二章 一元二次函数方程不等式 单元测试
人教A版(2019) 必修第一册 第二章 一元二次函数方程不等式 单元测试(已下线)第2章 一元二次函数、方程和不等式(单元提升卷)-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)2015-2016学年重庆市巴蜀中学高一下期中理科数学试卷黑龙江省大庆铁人中学2020-2021学年高二上学期期中考试数学试题黑龙江省大庆市铁人中学2020-2021学年高二(上)期中数学试题
2 . 下列有关命题的说法正确的有_________________________ (填写序号).
①命题“若
”的逆否命题为:“若
”
②“x=1”是“
”的充分不必要条件
③若
为假命题,则p、q均为假命题
④对于命题![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/5768b008f58a451da7cc6e7320fdadf6.png?resizew=100)
,则
①命题“若
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/c58ee258202a4cad9f05cf4a37ad1eb0.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/171f4f099ac642edb970fd597ae85283.png?resizew=151)
②“x=1”是“
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/32d4502696c34fc9808e5d788a45d890.png?resizew=100)
③若
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/a9d45af858364e4b9b468bd4a9764918.png?resizew=40)
④对于命题
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/5768b008f58a451da7cc6e7320fdadf6.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/b579618389974018b89fb85a78a8411a.png?resizew=89)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572566089965568/1572566096003072/STEM/40c7af7ac0d647a9934ca0b751c903ce.png?resizew=201)
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14-15高二上·山东淄博·期末
名校
3 . 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
名校
4 . 给出下列四个命题:
①函数
的一条对称轴是
;
②函数
的图象关于点(
,0)对称;
③正弦函数在第一象限为增函数;
④若
,则
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99074f989e74d5ff306b4b7b7a379c1f.png)
以上四个命题中正确的有__________ (填写正确命题前面的序号)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0431e18aed00c5be3732029085c5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5a2e8a8ce17b9dd84ce10933358859.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
③正弦函数在第一象限为增函数;
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4976432481672d47a64f2ec5ecea92ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251874d613ca71393335282dc8244e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99074f989e74d5ff306b4b7b7a379c1f.png)
以上四个命题中正确的有
您最近一年使用:0次
2016-11-30更新
|
1030次组卷
|
11卷引用:山东省淄博市实验中学、高青一中2016-2017学年高一下学第一次模块考试(期中)数学试题
山东省淄博市实验中学、高青一中2016-2017学年高一下学第一次模块考试(期中)数学试题【全国校级联考】湖南省株洲市醴陵二中、醴陵四中2017-2018学年高一下学期期中联考数学试题【全国区级联考】山东省枣庄市薛城区2017-2018学年第二学期高一年级期中考试数学试题(已下线)2017-2018学年下学期期末复习备考之精准复习模拟题高一数学(A卷)(第01期)吉林省白城市第一中学2018-2019学年高一12月月考数学(文)试题【全国百强校】湖南省衡阳市第一中学2018-2019学年高一下学期第一次月考数学试题陕西省西安市育才中学2018-2019学年高一下学期4月月考数学试题甘肃省武威市第一中学2019-2020学年高一下学期期中考试数学试题陕西省西安市庆安高级中学2019-2020学年高一下学期第二次月考数学试题贵州省毕节市实验高级中学2020-2021学年高二上学期第一次月考数学试题湖南省邵阳市武冈市2017-2018学年高一下学期期末数学试题
5 . “
或
”是“
”的_________ 条件.(从“充要”,“充分不必要”,“必要不充分”“ 既不充分也不必要”中选择一个正确的填写)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c925c4283740ce6cc412c1c5f57b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3056bd950bb55035358d45d1b7d354c.png)
您最近一年使用:0次
2016-12-04更新
|
345次组卷
|
2卷引用:2015-2016学年山东省胶州市高二上学期期末考试理科数学试卷
6 . 3<m<9是方程
+
=1表示的椭圆的_____ 条件.(从“充要”、“充分不必要”、“必要不充分”、“既不充分也不必要”中选择一个正确的填写)
![](https://img.xkw.com/dksih/QBM/2016/3/11/1572533230354432/1572533235916800/STEM/6f4ff119eceb4c4cba486143293cf24d.png?resizew=34)
![](https://img.xkw.com/dksih/QBM/2016/3/11/1572533230354432/1572533235916800/STEM/6514614417cf4bcb84010687c3f47995.png?resizew=34)
您最近一年使用:0次
21-22高二上·浙江·期末
解题方法
7 . 如图,已知
,图中的一系列圆是圆心分别为A、B的两组同心圆,每组同心圆的半径分别是1,2,3,…,n,…利用这两组同心圆可以画出以A、B为焦点的椭圆,若其中经过点M、N、P的椭圆的离心率分别是
.则它们的大小关系是_______ (用“<”连接).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b685dfb277b4d68a4c390152339898e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa272ab1c6638acd1712cfb478fe0bf.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715478340091904/2715709847379968/STEM/33b51766-42e1-4f5d-b741-e1de0e24b260.png?resizew=349)
您最近一年使用:0次
12-13高二上·浙江温州·单元测试
名校
解题方法
8 . 如图,已知
,图中的一系列圆是圆心分别为
、
的两组同心圆,每组同心圆的半径分别是
,
,
,…,
,….利用这两组同心圆可以画出以
、
为焦点的双曲线. 若其中经过点
、
、
的双曲线的离心率分别是
,
,
.则它们的大小关系是____________ (用“
”连接).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48867e261c61d24a0a1a4f7ff4627c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec278fba89d8cf87a4ce2a0cc65d0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b86cb95a478baae09f980fb54a3167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b60ee527408800291f24ba1011962b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://img.xkw.com/dksih/QBM/2012/3/3/1570785687625728/1570785692516352/STEM/fc8efd6a-0cc1-4319-b7c6-282c1385f4a0.png?resizew=388)
您最近一年使用:0次
9 . 如图,已知
,图中的一系列圆是圆心分别为A、B的两组同心圆,每组同心圆的半径分别是1,2,3,…,n,…. 利用这两组同心圆可以画出以A、B为焦点的椭圆或双曲线. 若其中经过点M、N的椭圆的离心率分别是
,经过点P,Q 的双曲线的离心率分别是
,则它们的大小关系是_____ (用“
”连接)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48867e261c61d24a0a1a4f7ff4627c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14da6b0cff5b46c40c5b9b9a8c76ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4806f9b5114217a879fbf2cfec4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://img.xkw.com/dksih/QBM/2014/4/15/1571620379746304/1571620385316864/STEM/b95f77ae5aeb4eb3be27b6ad369ca158.png?resizew=203)
您最近一年使用:0次