名校
解题方法
1 . 已知椭圆
:
的左、右焦点分别为
,
,
为椭圆上一动点(异于左、右顶点),若
的周长为6,且面积的最大值为
.
(1)求椭圆
的标准方程;
(2)过点
作不与
轴重合的直线与椭圆
相交于
,
两点,直线
的方程为:
,过点
作
垂直于直线
于点
,求证:直线
必过
轴一定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97abff83cac650930a5d9aa1cfaf594f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2024-02-27更新
|
361次组卷
|
4卷引用:1号卷·2022年高考最新原创信息试卷(一)理数
2 . 已知椭圆
:
的长轴为双曲线
的实轴,且椭圆
过点
.
(1)求椭圆
的标准方程;
(2)点
、
是椭圆
上异于点
的两个不同的点,直线
与
的斜率均存在,分别记为
,
,且
,求证:直线
恒过定点,并求出定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28675c5bcb91f9084684c58095f37ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151e09f3a383d7811c619eef3a6398cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-09-22更新
|
1354次组卷
|
6卷引用:山东省淄博实验中学、淄博齐盛高中2022-2023学年高二上学期11月第一次模块考试数学试题
山东省淄博实验中学、淄博齐盛高中2022-2023学年高二上学期11月第一次模块考试数学试题(已下线)重难专攻(十)圆锥曲线中的定点问题 A卷素养养成卷(已下线)模块四 专题6 大题分类练(圆锥曲线的方程)拔高能力练(人教A)(已下线)第3章 圆锥曲线与方程章末题型归纳总结-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第一册)(已下线)3.2.2 双曲线的几何性质(3)四川省成都市成华区某校2023-2024学年高三“三诊”数学(文)试题
3 . 已知
的两顶点坐标
,
.
(1)求动点
的轨迹
的方程;
(2)不垂直于
轴的动直线
与轨迹
相交于
两点,定点
,若直线
关于
轴对称,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f01b186ac8aa73e1a3609b40b6c3ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef23ac1cf3efeaf217a5fdc81474bf7.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)不垂直于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c153027427477bcd0a7228b14ce96cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378f90fe1e622bab7a8fb2ccdc0c11cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
2023-08-09更新
|
375次组卷
|
2卷引用:江西省南昌市第一中学2022-2023学年高二上学期期中数学试题
22-23高二·江苏·课后作业
解题方法
4 . 已知椭圆
的一个顶点为
,离心率为
.
(1)求椭圆的方程;
(2)过椭圆右焦点且斜率为
的直线
与椭圆相交于两点
,与
轴交于点
,线段
的中点为
,直线
过点
且垂直于
(其中
为原点),证明直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7968194cf13e872ab941231cfc9eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)过椭圆右焦点且斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2799abb64fd7bfce9dfa7228aa460564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
解题方法
5 . 已知椭圆
的离心率为
,依次连接椭圆E的四个顶点构成的四边形面积为
.
(1)求椭圆E的标准方程;
(2)设点F为E的右焦点,
,直线l交E于P,Q(均不与点A重合)两点,直线
的斜率分别为
,若
,求△FPQ的周长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
(1)求椭圆E的标准方程;
(2)设点F为E的右焦点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864a084c9d83a6f79e0f2064db4a72d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fcd3ccc354fa73a921b9c6f653c055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8e7417355adc05abb4503f193ba319.png)
您最近一年使用:0次
2022-12-30更新
|
775次组卷
|
7卷引用:广西壮族自治区玉林市、贵港市、贺州市2023届高三上学期12月期末数学(文)试题
名校
解题方法
6 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
经过点
,离心率为
,点A为椭圆C的右顶点,直线l与椭圆相交于不同于点A的两个点
,
.
(1)求椭圆C的标准方程;
(2)若以P,Q为直径的圆恒过点A,求证:直线l恒过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
(1)求椭圆C的标准方程;
(2)若以P,Q为直径的圆恒过点A,求证:直线l恒过定点,并求出定点坐标.
您最近一年使用:0次
2023-05-18更新
|
436次组卷
|
3卷引用:四川省乐山市沫若中学2021-2022学年高二下学期第二次月考数学(理)试题
名校
解题方法
7 . 如图,点A是椭圆
的短轴位于x轴下方的端点,过A作斜率为
的直线l交椭圆于点B,若点P的坐标为
,且满足
轴,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/01ff317c-9b63-4935-b59d-e0b4ef44e46c.png?resizew=177)
(1)求椭圆C的方程;
(2)若点M是直线
上的动点,过点M分别做椭圆C的两条切线,切点分别为S,T,求证:直线ST过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c31def37a7288283005f7d526e22ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1e180ac3aeb73d818172798e3a6186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6996496e724daa8388028ff7005b2f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/01ff317c-9b63-4935-b59d-e0b4ef44e46c.png?resizew=177)
(1)求椭圆C的方程;
(2)若点M是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
您最近一年使用:0次
解题方法
8 . 已知焦点在
轴上的椭圆
:
的长轴长为4,
的右顶点
到右焦点的距离为1.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/30/dfbe4211-ddc5-490a-a00d-325c3ea24c86.png?resizew=150)
(1)求椭圆
的标准方程;
(2)如图,已知点
,直线
与椭圆
交于不同的两点
,
,(
,
两点都在
轴上方),
为坐标原点,且
.证明直线
过定点,并求出该定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/30/dfbe4211-ddc5-490a-a00d-325c3ea24c86.png?resizew=150)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22fd883faf4c810b80abd2cbe334c93.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d08dbfd03288ff12e7365b0e6331a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
,点
在椭圆上,
.若
的周长为6,面积为
.
(1)求曲线
的方程;
(2)设动直线
过定点
与曲线
交于不同两点
,
(点
在
轴上方),在线段
上取点
使得
,证明:当直线运动过程中,点
在某定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b06ec98817ef57a1a1638eb5645647.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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce6d43ae86272599d38c1daaf4ae379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c587d36df6b9ba250efe72da09c6c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00d5d8cc31aaca7fc2eafb99eac7629.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2022-11-17更新
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2卷引用:四川省江油中学2022-2023学年高三上学期第三次阶段考试数学(理)试题
10 . 在平面直角坐标系xOy中,已知椭圆
,过右焦点
作两条互相垂直的弦AB,CD,设AB,CD中点分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/dfa08e48-cb55-47bb-b099-3a594ef9ce33.png?resizew=189)
(1)写出椭圆右焦点
的坐标及该椭圆的离心率;
(2)证明:直线MN必过定点,并求出此定点坐标;
(3)若弦AB,CD的斜率均存在,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be0b9fdd8005f371fcec6bc0844cff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/dfa08e48-cb55-47bb-b099-3a594ef9ce33.png?resizew=189)
(1)写出椭圆右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)证明:直线MN必过定点,并求出此定点坐标;
(3)若弦AB,CD的斜率均存在,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfb02e157819a2bdd0f2790cbc825e9.png)
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