名校
1 . 若方程
所表示的曲线为
,给出下列四个命题:
①若
为椭圆,则实数
的取值范围为
;
②若
为双曲线,则实数
的取值范围为
;
③曲线
不可能是圆;
④若
表示椭圆,且长轴在
轴上,则实数
的取值范围为
.
其中真命题的序号为________ .(把所有正确命题的序号都填在横线上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e3d4ce1e61016c6b971f79d85ef9586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ae286ae8a209bc659ace6354b79abf.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1428a22f5b703f74a47838fc3090fc5.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
其中真命题的序号为
您最近一年使用:0次
名校
2 . 以下四个关于圆锥曲线的命题中:①设
、
为两个定点,
为非零常数,
,则动点
的轨迹为双曲线;②以定点
为焦点,定直线
为准线的椭圆(
不在
上)有无数多个;③方程
的两根可分别作为椭圆和双曲线的离心率;④过原点
任作一直线,若与抛物线
,
分别交于
、
两点,则
为定值.
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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0043a7c94f83d4384631d6af58e2f6fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31a5fd45c1d9597274514b23f81a44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4841b60f8f9632f2398e0cfc3f5215b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c05093f9548cc6c9ca78309e27e74c.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/2a325ef9b2922f6c3507224516753e97.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 . 有下列命题:
①抛物线
的准线方程为
;
②已知直线过两点
,
,则此直线的斜率是
;
③若方程
表示双曲线,则实数
的取值范围是
.
其中正确命题的序号为________ (把正确的答案都填上).
①抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db63cef6d8bbb08137d71c6f7b6e741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
②已知直线过两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedad6bb70631b944c69f8f0b02b35d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47153fdd73c0661fa460130082e30929.png)
③若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc5494f7d24f95a721555b85c84e8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127aacea765b09f5110b3176493f0dd2.png)
其中正确命题的序号为
您最近一年使用:0次
5 . 以下关于圆锥曲线的
个命题中:
①方程
的两实根可分别作为椭圆和双曲线的离心率;
②设
,
为平面内两个定点,若
,则动点
的轨迹为双曲线的一支;
③方程
表示椭圆,则
的取值范围是
;
④双曲线
与椭圆
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).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f9da93ffb16e3e15db5eb0b7a3618d.png)
②设
![](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/3f3a0462f4d0f9f0d2256c4634a85c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
③方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc8b465c3869dc5c1bc0ca05dd09990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1156a8b29780810bd472f6d9e11b0e39.png)
④双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d49e09b17b19d7c787e95bcf1e9731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b1ddc7d49161e0eb8cecdab16285d4.png)
其中真命题的序号为
您最近一年使用:0次
2017-11-03更新
|
614次组卷
|
2卷引用:北京市海淀区育英学校2017学年高二上学期期中考试数学(文)试题
6 . 以下四个关于圆锥曲线的命题中:①设
为两个定点,
为非零常数,
,则动点
的轨迹为双曲线;②过定圆
上一定点
作圆的动点弦
,
为坐标原点,若
则动点
的轨迹为圆;③
,则双曲线
与
的离心率相同;④已知两定点
和一动点
,若
,则点
的轨迹关于原点对称.
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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db429aa080d7c56eeac7a83f5ea7eb1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18c0d52f7a06e016a827c8639b76cd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2aa046fb3005c8e21faf0133953e13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20debe6824b0264abe9d570597edd490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ebe10ca4a5f13e11bfa0decd64078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110c0d79552f07c25c6fb647b6c54572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
其中真命题的序号为
您最近一年使用:0次
2016-12-03更新
|
382次组卷
|
3卷引用:2014-2015学年江西省赣州市赣县中学北校高二1月月考理科数学试卷
7 . 以下四个关于圆锥曲线的命题中:①设
,
为两个定点,
为非零常数,
,则动点
的轨迹为双曲线;
②方程
的两根可分别作为椭圆和双曲线的离心率;
③设定圆
上一定点
作圆的动点弦
,
为坐标原点,若
,则动点
的轨迹为椭圆;
④过点
作直线,使它与抛物线
仅有一个公共点,这样的直线有3条;
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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7a3544be6797ded92aa786853fec8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f9da93ffb16e3e15db5eb0b7a3618d.png)
③设定圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aef8acb02dc34ce485739dc49e218c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
④过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
其中真命题的序号为
您最近一年使用:0次
8 . 以下四个关于圆锥曲线的命题中:
①设
、
为两个定点,
为非零常数,
,则动点
的轨迹为双曲线;
②过定圆
上一定点
作圆的动弦
,
为坐标原点,若
则动点
的轨迹为椭圆;
③方程
的两根可分别作为椭圆和双曲线的离心率;
④双曲线
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
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/e41105eb63b149e49b30d6ac962c08a3.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/5d3820140060404c90332e226ca0cfe1.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/0b89f655331a44b58f650fea035be439.png?resizew=13)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db429aa080d7c56eeac7a83f5ea7eb1f.png)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/ba10ed8a3a0b4fb3bf8dfe2febf9af44.png?resizew=16)
②过定圆
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/d23aa30797604e9cb6bb077bfecedd17.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/e41105eb63b149e49b30d6ac962c08a3.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/a64346ff9b50464c8cadd79b3553c7fa.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/0125600dc0ac48f19e3876b0e6318c3d.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18c0d52f7a06e016a827c8639b76cd3.png)
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/ba10ed8a3a0b4fb3bf8dfe2febf9af44.png?resizew=16)
③方程
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/fedf1ab1fecf4670ae200c37fe341395.png?resizew=108)
④双曲线
![](https://img.xkw.com/dksih/QBM/2011/11/21/1570357662908416/1570357668241408/STEM/d564972a103e4d7cb294f9296e67f20c.png?resizew=203)
其中真命题的序号为
您最近一年使用:0次
11-12高二上·河南驻马店·期中
9 . 有下列命题:
①双曲线
与椭圆
有相同的焦点;
②
;
③
;
④
;
⑤
,
.
其中正确命题的序号为__________ .
①双曲线
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/25698b1658f74c42b4d475556cb93c2c.png?resizew=71)
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/36f33cd823fb4de08497d553a1f2df11.png?resizew=68)
②
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/756edf46c4154378b926aceaa7614889.png?resizew=95)
③
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/55fb0ac8e7414efba9fcc6ee24c26c78.png?resizew=99)
④
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/979d7b11db8541999c2b67b787d22100.png?resizew=104)
⑤
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/dd4570d0c62b4ff29b5e6904aab66617.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/3/10/1572532753162240/1572532759232512/STEM/3ad3265d988849679ee0a6603a556c71.png?resizew=99)
其中正确命题的序号为
您最近一年使用:0次
2016-11-30更新
|
294次组卷
|
3卷引用:2010-2011年河南省驻马店确山二高高二上学期期中考试文科数学
(已下线)2010-2011年河南省驻马店确山二高高二上学期期中考试文科数学2015-2016学年湖南省醴陵二中高二上学期期末文科数学卷2015-2016学年湖南省醴陵二中、四中高二上期末文科数学试卷
23-24高二上·全国·课前预习
10 . 判断正误,正确的写“正确”,错误的写“错误”.
(1)平面内到两定点的距离的差等于常数(小于两定点间的距离)的点的轨迹是双曲线.( )
(2)平面内到点
,
的距离之差等于
的点的轨迹是双曲线.( )
(3)平面内到点
,
的距离之差的绝对值等于
的点的轨迹是双曲线.( )
(4)双曲线的标准方程中,
,
的大小关系是
.( )
(1)平面内到两定点的距离的差等于常数(小于两定点间的距离)的点的轨迹是双曲线.
(2)平面内到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d43865444b0cfda101bf3791f3334e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20b285a1b349bb31916e254cb5d168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
(3)平面内到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d43865444b0cfda101bf3791f3334e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20b285a1b349bb31916e254cb5d168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
(4)双曲线的标准方程中,
![](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/432d77fe5ad3032d59a237dd94c8a638.png)
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2023-10-04更新
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3卷引用:3.2.1 双曲线及其标准方程(导学案) -【上好课】高二数学同步备课系列(人教A版2019选择性必修第一册)
(已下线)3.2.1 双曲线及其标准方程(导学案) -【上好课】高二数学同步备课系列(人教A版2019选择性必修第一册)(已下线)专题24 双曲线及其标准方程7种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)(已下线)专题11 双曲线的标准方程6种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(苏教版2019选择性必修第一册)