解题方法
1 . 已知椭圆
过点
,离心率为
.
![](https://img.xkw.com/dksih/QBM/2022/1/22/2899774921129984/2909124976984064/STEM/12edb5da-9f0e-4a27-82d9-6bee0b2e1ae9.png?resizew=150)
(1)求椭圆的标准方程;
(2)过椭圆的上顶点作直线l交抛物线
于A,B两点,O为坐标原点.
①求证:
;
②设OA,OB分别与椭圆相交于C,D两点,过点O作直线CD的垂线OH,垂足为H,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4ca616e225686a236f7c2db3e16dfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb7c44fbd558182e05b1f82e4c337c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2899774921129984/2909124976984064/STEM/12edb5da-9f0e-4a27-82d9-6bee0b2e1ae9.png?resizew=150)
(1)求椭圆的标准方程;
(2)过椭圆的上顶点作直线l交抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
②设OA,OB分别与椭圆相交于C,D两点,过点O作直线CD的垂线OH,垂足为H,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f33a489fa920ff269b00784034def90a.png)
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解题方法
2 . 已知椭圆
的焦距为
,点
在椭圆C上.
(1)求椭圆C的方程;
(2)若直线l与椭圆C相交于A,B两点,且线段AB被直线OM平分,求
(O为坐标原点)面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877ce7a2fbad2c7b4a696a37f635be89.png)
(1)求椭圆C的方程;
(2)若直线l与椭圆C相交于A,B两点,且线段AB被直线OM平分,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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名校
解题方法
3 . 已知椭圆C:
(
)过点
,且离心率为
.
(1)求椭圆C的方程;
(2)过点
(
)的直线l(不与x轴重合)与椭圆C交于A,B两点,点C与点B关于x轴对称,直线AC与x轴交于点Q,试问
是否为定值?若是,请求出该定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269a51e0f77f63bae2df3dc8b1d4f455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bda892497cea43df67db57b4e2a07a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bb152aca1652e568be56bba14b048.png)
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2022-02-03更新
|
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3卷引用:安徽省合肥市第六中学、第八中学、168中学等校2021-2022学年高二上学期期末联考数学试题(B)
4 . 写一个关于y轴对称,且经过点
的封闭的圆锥曲线方程______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
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名校
解题方法
5 . 已知椭圆
经过点
,离心率
,
,
分别是椭圆C的焦点,过点
的直线交椭圆C于A,B两点,则
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef404abca1f78da130a38849f58559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973aa6f1a268dbd02fa5236dc6f58647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7725aa425a2cb5bcb7778a1247d3883.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/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
A.8 | B.12 | C.![]() | D.12或![]() |
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2022-02-15更新
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3卷引用:安徽省滁州九校2021-2022学年高二上学期期中联考数学试题
安徽省滁州九校2021-2022学年高二上学期期中联考数学试题辽宁省盘锦市辽河油田第二高级中学2021-2022学年高二上学期期中数学试题(已下线)解密18 椭圆 (讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)
解题方法
6 . 已知椭圆
经过点
和
.
(1)求椭圆
的方程;
(2)经过点
的直线
与
相交于
,
两点(
不经过点
),设直线
,
的斜率分别为
,
,试问
是否为定值?若是,求出该定值;否则,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cfeb2ed775551c13dba49b40005253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e65611df39794fec95423cc1289d91.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.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)
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|
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4卷引用:安徽省宿州市十三所重点中学2021-2022学年高二上学期期中联考数学试题
名校
解题方法
7 . (1)求椭圆的标准方程:以点
为焦点,经过点
.
(2)求双曲线的标准方程:与双曲线
有公共焦点,且过点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f447a519cac092901b07a8fde7d20622.png)
(2)求双曲线的标准方程:与双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421d518bbdc7ecbb69bd8b6eb697ce4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406933a7197b5f89c55dca5ff56a7473.png)
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解题方法
8 . 已知椭圆E:
的上顶点到焦点距离为2,且过点
.
(1)求椭圆E的方程;
(2)设斜率为
的直线l与E交于A,B两点直线l与x轴的交点为M,三角形ABC是以AB为斜边的等腰直角三角形,CM的中点为P,AB的中点为Q,问
是否为定值?若是,求出该定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)求椭圆E的方程;
(2)设斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
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解题方法
9 . 已知椭圆
的离心率为
,且过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/fe3556e4-3fad-4b6f-bbc5-bdc1102eb2b4.png?resizew=245)
(1)求椭圆
的方程.
(2)若点
,
分别是椭圆的左、右顶点,直线
经过点
且垂直于
轴,点
是椭圆上异于
,
的任意一点,直线
交
于点
,如图所示.设直线
的斜率为
,直线
的斜率为
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6b94e42869013745050aba059b58dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32219417d6a217b3bed59d9bfc8e52e0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/fe3556e4-3fad-4b6f-bbc5-bdc1102eb2b4.png?resizew=245)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
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6卷引用:安徽省合肥市庐江县2021-2022学年高二上学期期末数学试题
安徽省合肥市庐江县2021-2022学年高二上学期期末数学试题天津市第九十五中学益中学校2021-2022学年高三上学期第二次月考数学试题(已下线)解密14 椭圆方程(分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(新高考专用)广东省佛山市顺德区文德学校2021-2022学年高二上学期第二次阶段性测试数学试题2023版 北师大版(2019) 选修第一册 名师精选卷 第六单元 椭圆 A卷2023版 苏教版(2019) 选修第一册 名师精选卷 第六单元 椭圆A卷
名校
解题方法
10 . 已知椭圆
:
,圆
:
的圆心
在椭圆C上,点
到椭圆
的右焦点的距离为2,过点P作直线
交椭圆于A,B两点.
![](https://img.xkw.com/dksih/QBM/2021/11/13/2850304005734400/2869334767681536/STEM/6ea81c2b-7d2c-44bc-b126-243640f1d90c.png?resizew=264)
(1)求椭圆C的方程;
(2)若
,
,求直线
斜率k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fef6303da730c2ced7f3fbd5e2103d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586ec4bbaf9bd56c51d67e5da4333aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13281f913e80fcec0935c89e97a1813e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2021/11/13/2850304005734400/2869334767681536/STEM/6ea81c2b-7d2c-44bc-b126-243640f1d90c.png?resizew=264)
(1)求椭圆C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1417cdb4f08c789cc7f639c2ba7414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d4620aa93b2d9a67599fa58d882472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2021-12-10更新
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309次组卷
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2卷引用:安徽省芜湖市第一中学2021-2022学年高二上学期期中数学试题