名校
解题方法
1 . 已知椭圆
:
的离心率为
,且过点
.
(1)求椭圆
的标准方程;
(2)设与直线
(
为坐标原点)平行的直线l交椭圆
于
,
两点,求证:直线
,
与
轴围成一个等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2c533dbc23a34518f72f3cb14f330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9a3ea5e76e165faeabfdbc9717c287.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
解题方法
2 . 记焦点在同一条轴上且离心率相同的椭圆为“相似椭圆”.已知椭圆
,以椭圆E的焦点为顶点作相似椭圆M.
![](https://img.xkw.com/dksih/QBM/2019/1/16/2120046849204224/2121197386719232/STEM/7e9b55550aa849d4a999852bf1191ae5.png?resizew=192)
(1)求椭圆M的方程;
(2)设直线l与椭圆
交于
两点,且与椭圆
仅有一个公共点,试判断
的面积是否为定值(
为坐标原点)?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a909cfbe59a736f3d2024723dba27c13.png)
![](https://img.xkw.com/dksih/QBM/2019/1/16/2120046849204224/2121197386719232/STEM/7e9b55550aa849d4a999852bf1191ae5.png?resizew=192)
(1)求椭圆M的方程;
(2)设直线l与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6765a87bcc2b6d44aabdee9af73e6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2018-05-08更新
|
984次组卷
|
6卷引用:【市级联考】江西省吉安市2019届高三上学期五校联考数学(文)试题
名校
解题方法
3 . 已知椭圆系方程
:
(
,
),
是椭圆
的焦点,
是椭圆
上一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/5441b9a7-adc8-459f-9a23-5a8b6bbf4255.png?resizew=187)
(1)求
的方程;
(2)
为椭圆
上任意一点,过
且与椭圆
相切的直线
与椭圆
交于
,
两点,点
关于原点的对称点为
,求证:
的面积为定值,并求出这个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edaca4da756ba532e507a98d9a92896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de11ed863d43e1974d4139675921f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8182ec0107f5eb91f43ce6d80cca6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de11ed863d43e1974d4139675921f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/236d763d7d95f2609b127d210a503262.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/5441b9a7-adc8-459f-9a23-5a8b6bbf4255.png?resizew=187)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de11ed863d43e1974d4139675921f2f5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de11ed863d43e1974d4139675921f2f5.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
您最近一年使用:0次
2018-04-25更新
|
713次组卷
|
2卷引用:江西省赣州市十四县(市)2018届高三下学期期中考试数学(理)试题
4 . 已知椭圆
:
的左、右焦点分别为
、
,以点
为圆心,以3为半径的圆与以点
为圆心,以1为半径的圆相交,且交点在椭圆
上.设点
,在
中,
.
(1)求椭圆
的方程;
(2)设过点
的直线
不经过点
,且与椭圆
相交于
,
两点,若直线
与
的斜率分别为
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfdab8b0494d22a788fd0a34258abd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc7080a72f92adf5f57daf281fd359c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9092a8273b552fe175b28fbed6953837.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879080beb1e55cae2639645cd64c4710.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/c5db41a1f31d6baee7c69990811edb9f.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
您最近一年使用:0次
2018-04-20更新
|
760次组卷
|
2卷引用:江西省2018届高三毕业班新课程教学质量监测数学(文)试题
5 . 已知椭圆
:
的右焦点为
,不垂直
轴且不过
点的直线
与椭圆
相交于
两点.
(1)若直线
经过点
,则直线
、
的斜率之和是否为定值?若是,求出该定值;若不是,请说明理由;
(2)如果
,原点到直线
的距离为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacfc149ede71417fa599c21b5a84cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a477603f3f88c3b48352b6130f9ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a601bb181415cf349821d76fc63668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
6 . 已知椭圆
的一个焦点与抛物线
的焦点相同,A为椭圆C的右顶点,以A为圆心的圆与直线
相交于P,
两点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2997349c00e4c8414a9050b50425241f.png)
(Ⅰ)求椭圆C的标准方程和圆A的方程;
![](https://img.xkw.com/dksih/QBM/2018/4/7/1918897805697024/1920430892818432/STEM/c80842fd-b17f-41e5-8d14-1dd2f728423b.png)
(Ⅱ)不过原点的直线
与椭圆C交于M、N两点,已知OM,直线
,ON的斜率
成等比数列,记以OM、ON为直径的圆的面积分别为S1、S2,试探究
的值是否为定值,若是,求出此值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dab1d87938dc3db47ee089bb46b68c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac89d45e79b10741d93a9443c70adde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2997349c00e4c8414a9050b50425241f.png)
(Ⅰ)求椭圆C的标准方程和圆A的方程;
![](https://img.xkw.com/dksih/QBM/2018/4/7/1918897805697024/1920430892818432/STEM/c80842fd-b17f-41e5-8d14-1dd2f728423b.png)
(Ⅱ)不过原点的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fec6efa333e34c57722ca8dcb8fbf9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21cbb1c2bcbcb8391ac5a879f2ae0.png)
您最近一年使用:0次
2018-04-09更新
|
725次组卷
|
3卷引用:齐鲁名校教科研协作体 山东、湖北部分重点中学2018届高三高考冲刺模拟考试理科数学试题
9-10高三·河北石家庄·阶段练习
名校
7 . 已知直线
过椭圆
的右焦点
,抛物线
的焦点为椭圆
的上顶点,且
交椭圆
于
两点,点
在直线
上的射影依次为
.
(1)求椭圆
的方程;
(2)若直线
交
轴于点
,且
,当
变化时,证明:
为定值;
(3)当
变化时,直线
与
是否相交于定点?若是,请求出定点的坐标,并给予证明;否则,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51698f7095e795d4f0527b986ac1db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a0ba4fbd3f2724f662e947e1293e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7989082225a357cb1a3094e0bbce1a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5060d2dc2611217f9addd82621472cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafd646fe0560342cbc4be4661080d1c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1314dce04bcfa1e15cbd765b951f7052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2018-04-07更新
|
952次组卷
|
10卷引用:2011届江西省鹰潭市高三第二次模拟考试理科数学卷
(已下线)2011届江西省鹰潭市高三第二次模拟考试理科数学卷(已下线)2011届河北省正定中学高三第四次月考数学理卷陕西省西安市八校2018届高三上学期第一次联考数学(文)试题陕西省西安市八校2018届高三上学期第一次联考数学(理)试题四川省宜宾第三中学2018-2019学年高二11月月考数学试题2020届吉林省东北师范大学附属中学高三上学期第二次模拟数学(理)试题2020届湖南省长沙市长郡中学高三上学期第5次月考数学(文)试题2020届陕西省西安交通大学附中上学期高三第四次诊断数学(文)试题2020届湖南省长沙市长郡中学高三第五次月考数学(文)试题广东省高州市2020-2021学年高二上学期期末数学试题
解题方法
8 . 已知椭圆
,离心率
,点
在椭圆上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/706080d2-30dc-45dd-a00b-8cc2af2c5e6c.png?resizew=232)
(1)求椭圆
的标准方程;
(2)设点
是椭圆
上一点,左顶点为A,上顶点为
,直线
与
轴交于点
,直线
与
轴交于点
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fad038d2b0f4007c4e638c40a23e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8745fac475b6d51b2dec5395ccf36bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b113a198d2fe6797335d979f1dff3ad6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/706080d2-30dc-45dd-a00b-8cc2af2c5e6c.png?resizew=232)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf9bfbf771cb6118f8e631724314e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9eeee83b4b7c6ceac7828ff534ce15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdba575916145031ef2ea38277247a9.png)
您最近一年使用:0次
名校
解题方法
9 . 已知点
,
为椭圆
:
上异于点A,B的任意一点.
(Ⅰ)求证:直线
、
的斜率之积为
-;
(Ⅱ)是否存在过点
的直线
与椭圆
交于不同的两点
、
,使得
?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddf5e0615509ebf668983f9aacb1d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2018/3/29/1912498319884288/1912876302958592/STEM/3bdec91ae4044b64a266ae8e14b61f48.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7895aece9dd5a90424879ea9184037a2.png)
(Ⅰ)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e61620a272dada8d4b9a9fab6379dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30513ea48bc1ef3ae78adac83d894f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5743a3bf50e8146f519a7b4f32a958b5.png)
(Ⅱ)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae70b29314eb61c67856a5cad1d4dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/74f2856bab5133d8f8f2fe3e9a7c1dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-03-30更新
|
570次组卷
|
3卷引用:贵州省黔东南州2018届高三下学期第二次模拟考试数学(文)试题
名校
10 . 已知椭圆
:
的离心率与双曲线
的离心率互为倒数,且过点
.
(1)求椭圆
的方程;
(2)过
作两条直线
与圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985d298c9f6123af2b182510f9ba3f21.png)
相切且分别交椭圆于
两点.
①求证:直线
的斜率为定值;
②求
面积的最大值(其中
为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee8309fd2d023df7978dd64793f4b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985d298c9f6123af2b182510f9ba3f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b26368d38a47fc6134ef9d9b0861aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a00ec17ff64557c62f46f00c18d4168.png)
①求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2018-03-23更新
|
782次组卷
|
5卷引用:江西省2018届高三六校联考数学(理)试题