名校
1 . 下列结论:
(1)若
,则“
”成立的一个必要不充分条件是“
,且
”;
(2)存在
,且存在
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
的点
的轨迹方程为
;
(5)已知平面
满足
,则
;
(6)若
,则事件
与
是对立事件.
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/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ef778b8c90778644b6f34d2f851b0.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfe5f8a174b9b70fe067e171da7ea2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
(4)平面上的动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.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/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
(5)已知平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3e3f7a929526d602d0a4010ba479a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cac3ca03e7640dceb04fbf33b8268b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f747152f006301e03b643afb80195c.png)
(6)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94cb714391a7e13d8e53bebd4042fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
其中正确结论的序号为
您最近一年使用:0次
2 . 以下四个关于圆锥曲线的命题中:
①设A、B为两个定点,k为非零常数,若
,则动点P的轨迹为双曲线;
②抛物线
焦点坐标是
;
③过定圆C上一定点A作圆的动弦AB,O为坐标原点,若
,则动点P的轨迹为椭圆;
④曲线
与曲线
(
且
)有相同的焦点.
其中真命题的序号为______ (写出所有真命题的序号.)
①设A、B为两个定点,k为非零常数,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f4562ddd51f544eaff300c9b4638646.png)
②抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315513892f06ef3ce82021d5e0566606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532eff5d4385426065732b3deec31426.png)
③过定圆C上一定点A作圆的动弦AB,O为坐标原点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a6bb839093992d42c6c813c73ccad2.png)
④曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a0bd4bd9985f1e367c100b453ed03f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4e82ca0fbf98b8903c97467acd1d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69c2e4498e7916dbc05a71fc0c316ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5c9d9221866bca2fd57b9b31100c62.png)
其中真命题的序号为
您最近一年使用:0次
名校
3 . 以下四个关于圆锥曲线的命题:
(1)直角坐标系内,到点
和到直线
距离相等的点的轨迹是抛物线;
(2)设
为两个定点,若
,则动点
的轨迹为双曲线;
(3)方程
的两根可分别作椭圆和双曲线的离心率;
(4)若直线
和
没有交点,则过点
的直线与椭圆
的交点个数为
.其中真命题的序号为___ .(写出所有真命题的序号)
(1)直角坐标系内,到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5434dfea8a321255e5466bc60ab1be0b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0ecf8049d69be4f8c15a8f35bffcf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f9da93ffb16e3e15db5eb0b7a3618d.png)
(4)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29b82fcfd62228e12f020fec264fe21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3a9b723303acf1669d4d88a7172b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
您最近一年使用:0次
4 . 以下四个命题:①若函数
(x∈R)有大于零的极值点,则实数m>1;②若抛物线
上一点M到焦点的距离为3,则点M到
轴的距离为2;③方程2x2-5x+2=0的两根可分别作为椭圆和双曲线的离心率;④已知函数
在
处取得极大值10,则
的值为
或
.其中真命题的序号为____________ (写出所有真命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fcae7e3e1117e966462690a38ca4d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/8e6d99d9ba34458e941f429303017d14.png?resizew=191)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/c2cc37d5a386417e99de4c72d1eb5c3d.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/e0ec062d96834bb6815c50a842f3c540.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/dda91ea78441480e9a4987e3ee5af458.png?resizew=24)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572613993439232/1572613999386624/STEM/49b02924f6c148dc8d005b483f63edfd.png?resizew=27)
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名校
解题方法
5 . 给出下列五个命题:
①已知直线
、
和平面
,若
,
,则
;
②平面上到一个定点和一条定直线的距离相等的点的轨迹是一条抛物线;
③双曲线
,则直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef7c2a877878794a822b815a57e3e91.png)
与双曲线有且只有一个公共点;
④若两个平面垂直,那么一个平面内与它们的交线不垂直的直线与另一个平面也不垂直;
⑤过
的直线
与椭圆
交于
、
两点,线段
中点为
,设直线
斜率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
,直线
的斜率为
,则
等于
.
其中,正确命题的序号为_______ .
①已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff4e42856fa5f6a4e12993e53b065e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22374b9b90e04bd0e0e34ece26a89f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d07324ee4dec98ce18a2f37728791b.png)
②平面上到一个定点和一条定直线的距离相等的点的轨迹是一条抛物线;
③双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e0b8c81ac2e1f768c246208e2ca3ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef7c2a877878794a822b815a57e3e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abad909e0902a78436f29d6a755e2e1.png)
④若两个平面垂直,那么一个平面内与它们的交线不垂直的直线与另一个平面也不垂直;
⑤过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99296bab1b42898e7ca336a822510258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cb77304ba3546c1fc629832f1b811f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
其中,正确命题的序号为
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2020-03-04更新
|
370次组卷
|
3卷引用:2019届四川省成都市石室中学高三下学期三诊模拟数学(文)试题
2012·河北·三模
6 . 下列四个命题:①若
,则函数
的最小值为
;
②已知平面
,直线
,若
则
//
;
③△ABC中
和
的夹角等于180°-A;
④若动点P到点
的距离比到直线
的距离小1,则动点P的轨迹方程为
.
其中正确命题的序号为_________
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/f7346d22823247f898035364c7decb75.png?resizew=59)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/5a3de8a91ea54f12927bec75b2917444.png?resizew=72)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/33cbfd263d9f4901a9c5929d0eec3246.png?resizew=32)
②已知平面
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/09c81b8c723f4a4bb45b26b2289250ec.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/babcca62adcc4e269f0ca20d76447f0e.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/773cd5fb03da4680a0739f0b76b6e464.png?resizew=133)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/57408d9d99cf4cc99d725fbc3762e2c5.png?resizew=9)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/94c51ba953dd4286a74539a43e23e912.png?resizew=17)
③△ABC中
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/d77373bc29854b458fb8bc5ba8bc6e66.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/3c1885307107407c8b2c46c59053fad8.png?resizew=25)
④若动点P到点
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/86e7be3ac7b74444aaaab9d82991ab58.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/648ec568a30840d7ade1729be8f41ca2.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2012/2/17/1570747699372032/1570747704819712/STEM/6a25baaa55a6430591cac31bb7a67c84.png?resizew=55)
其中正确命题的序号为
您最近一年使用:0次
7 . 已知A、B为抛物线
上两点,直线
过焦点F,A、B在准线上的射影分别为C、D,则①
轴上恒存在一点K,使得
;②
;③存在实数
使得
(点O为坐标原点);④若线段
的中点P在准线上的射影为T,有
.中正确说法的序号________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9de36529148d5e73cc4ff68b8f5e3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d487fe76b23b2accc0b08c5386a987db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c822c3e065399046a64954bda65f7c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49fd1a2597f67240c9b98f77df71b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a670efc425a7cef956399d242b883f31.png)
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