1 . 已知曲线F(x,y)=0关于x轴、y轴和直线y=x均对称,设集合S={(x,y)|F(x,y)=0,x∈Z,y∈Z}.下列命题:
①若(1,2)∈S,则(-2,-1)∈S;
②若(0,2)∈S,则S中至少有4个元素;
③S中元素的个数一定为偶数;
④若{(x,y)|y2=4x,x∈Z,y∈Z}⊆S,则{(x,y)|x2=-4y,x∈Z,y∈Z}⊆S.
其中正确命题的序号为______ .(写出所有正确命题的序号)
①若(1,2)∈S,则(-2,-1)∈S;
②若(0,2)∈S,则S中至少有4个元素;
③S中元素的个数一定为偶数;
④若{(x,y)|y2=4x,x∈Z,y∈Z}⊆S,则{(x,y)|x2=-4y,x∈Z,y∈Z}⊆S.
其中正确命题的序号为
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3卷引用:【区级联考】北京市房山区2019年高考第一次模拟测试数学(理科)试题
2010·辽宁·一模
解题方法
2 . 已知函数
是
上的偶函数,对任意
,都有
成立,当
且
时,都有
给出下列命题:
①
且
是函数
的一个周期;
②直线
是函数
的一条对称轴;
③函数
在
上是增函数;
④函数
在
上有四个零点.
其中正确命题的序号为_____ (把所有正确命题的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54a16fd78a5464d7944e374552ed80b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16014834857c7ad49afc420095b5239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee798d2d512f7342c55a0d580f4367e2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db7707d6b2754808adefc9b2fb976a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ffd26ee71de49bd8c5deba8f623159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041da7ce47a2aedda53953794fdbd3dc.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4695c34aafd1c1ae276f9eddc53a397d.png)
其中正确命题的序号为
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名校
3 . 若存在实常数k和b,使得函数
对其公共定义域上的任意实数x都满足:
恒成立,则称此直线
的“隔离直线”,已知函数
(e为自然对数的底数),有下列命题:
①
内单调递增;
②
之间存在“隔离直线”,且b的最小值为
;
③
之间存在“隔离直线”,且k的取值范围是
;
④
之间存在唯一的“隔离直线”
.
其中真命题的序号为__________ .(请填写正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef655f5ecd8e5f7798c6e6747ba999b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c34f5d4207fbf261bdbcf0926155230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c17624c234559f04f5d94b7077f169a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55adeff09c4d3d878785239f0bf2e27a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc247e5237219a6169648a3d20483c9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b814095580525ddc8176650af6b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b814095580525ddc8176650af6b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c768cd9231a15caad0839f05d0f9207c.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8945c5bbc31c6617924d2c8aa29a091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17432e76b39908abe390d80f3c97f476.png)
其中真命题的序号为
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5卷引用:【全国市级联考】山东省日照市2018届高三校际联考理科数学试题
名校
4 . 下面有四个命题:
①在等比数列
中,首项
是等比数列
为递增数列的必要条件.
②已知
,则
.
③将
的图象向右平移
个单位,再将所得图象的横坐标不变,纵坐标缩短到原来的
,可得到
的图象.
④设
,则函数
有最小值无最大值.
其中正确命题的序号为___________ .(填入所有正确的命题序号)
①在等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f3998adfa2a5677ceb2a5414ae1e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e216415533c9198b4f03fb3a8dea293.png)
③将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f4780d6274f91ea0ccd9e63e5d4044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55feb3cbcaf37c63b6ce1c5abece8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa9f435744df49615adbe532d4cd47e.png)
其中正确命题的序号为
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2卷引用:山东、湖北部分重点中学2018届高三高考冲刺模拟考试(二)文科数学试题
解题方法
5 . 下列结论:
①若
,则“
”成立的一个充分不必要条件是“
,且
”;
②存在
,使得
;
③若函数
的导函数是奇函数,则实数
;
④平面上的动点
到定点
的距离比
到
轴的距离大1的点
的轨迹方程为
.
其中正确结论的序号为_________ .(填写所有正确的结论序号)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec124eb33e5ab4601b4b70f70913b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5abce09e73e31b37961de3da8fa38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31aef1ce68c1bae850d4b1633da6f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
④平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
其中正确结论的序号为
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4卷引用:河南省豫南九校2018届高三下学期第一次联考试题文科数学
河南省豫南九校2018届高三下学期第一次联考试题文科数学河南省豫南九校2018届高三下学期第一次联考文数试题(已下线)2019年一轮复习讲练测【新课标版理】1.2 命题及其关系、充分条件与必要条件(已下线)2019年一轮复习讲练测【新课标版文】1.2 命题及其关系、充分条件与必要条件(测)
名校
解题方法
6 . 给出以下命题:
①双曲线
的渐近线方程为
;
②命题“
”是真命题;
③已知线性回归方程为
,当变量
增加
个单位,其预报值平均增加
个单位;
④设随机变量ξ服从正态分布
,若
,则
;
⑤设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2279df7e4731bd6490aebf13d9856dc6.png)
则正确命题的序号为________ (写出所有正确命题的序号).
①双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acca1c00ee33a8d7aabf1d626541259e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95b60de1f6993edd7275bcf8b9527dd.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f542f7ffedb36713a74875fbd913ef8.png)
③已知线性回归方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9adbd5913c7a4a8fa526537843dfaf51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
④设随机变量ξ服从正态分布
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37bbde2076bfa6dd859f7787e155ab8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5e4c04e11c99553d865c87765c3380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5f03eb7d0c7fafb8750602173748ad.png)
⑤设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab68d62663af2e888754d86085ad27a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2279df7e4731bd6490aebf13d9856dc6.png)
则正确命题的序号为
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2卷引用:【全国市级联考】重庆市綦江区2018届高三5月预测调研考试理科数学试题
名校
7 . 已知椭圆
的左,右焦点分别为
,直线
与椭圆
交于
两点,给出下列结论:①若
,则
;②
与
不可能平行;③若
,则
;④
与
不可能垂直.其中正确结论的序号为__________ (请把正确结论的序号全部填写在横线上).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9835aacabfaabdf7e61da1d4e08b225a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73fbfd1b2f4b67ba5452bedcd1f5433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2015d9a88fb4d8f0520790693abc9649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80ecb6b5d5eca464b3f099513c08fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c429b542abf0ebee74a239b4857cf88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288060bacca802a86ff209ddfd412e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d76a73553016ef953653c8d92cd14d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
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8 . 下列结论:
①若
,则“
”成立的一个充分不必要条件是“
,且
”;
②存在
,使得
;
③若
在
上连续且
,则
在
上恒正;
④在锐角
中,若
,则必有
;
⑤平面上的动点
到定点
的距离比
到
轴的距离大1的点
的轨迹方程为
.
其中正确结论的序号为_________ .(填写所有正确的结论序号)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec124eb33e5ab4601b4b70f70913b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5abce09e73e31b37961de3da8fa38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b639b8a34097101c0a4767ea34c13884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec863a58386c4ef4816602a36d9daa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b639b8a34097101c0a4767ea34c13884.png)
④在锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ac8e446826ea6e653cd1ac6d5d6106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
⑤平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
其中正确结论的序号为
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|
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2卷引用:河南省豫南九校2018届高三下学期第一次联考试题理科数学
名校
9 . 已知正方体
的棱长为2,
为体对角线
上的一点,且
,现有以下判断:①
;②若
平面
,则
;③
周长的最小值是
;④若
为钝角三角形,则
的取值范围为
,其中正确判断的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd250fb1bebe4f610c7fe281217b38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c040eb3985b66e8db65932fdb63f844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ab13ef156d034b710d811e09b0be34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b590aaed2d5ef2610aa608faf95c02ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ab13ef156d034b710d811e09b0be34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fcec77177443519207ffc6afb988d0.png)
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3卷引用:湖北省华中师范大学第一附属中学2019届高三下学期5月押题理科数学试题
名校
10 . 下列共用四个命题.
(1)命题“
,
”的否定是“
,
”;
(2)在回归分析中,相关指数
为
的模型比
为
的模型拟合效果好;
(3)
,
,
,则
是
的充分不必要条件;
(4)已知幂函数
为偶函数,则
.
其中正确的序号为_________ .(写出所有正确命题的序号)
(1)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c7a319f1fb9ef4cd6bd9eb5ab0c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03edd85c55c93a3e34d3477d7e04f731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aec0693231f71fc10f820c41823dd37.png)
(2)在回归分析中,相关指数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c85067c53e936ef32da818efe04bdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be68b3aa1b5022969487c0bb8aad2c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c85067c53e936ef32da818efe04bdbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085ce2eeb0eb35af515d1ecd8ebaa610.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd15a98f5f7c568023a3db60c2e1de2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0029379a0e2f8595cfb343a5c03f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(4)已知幂函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb7ed9690c65a9fbfe0441af5f0b26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba24ca9648a13438daa6da7a10073163.png)
其中正确的序号为
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2017-05-26更新
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851次组卷
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4卷引用:湖南省长沙市长郡中学2017届高三5月模拟考试数学(理)试题