名校
解题方法
1 . 已知椭圆
的方程为
,过点
且离心率为
.
(1)求椭圆
的方程;
(2)点A是椭圆
与
轴正半轴的交点,不过点A的直线
交椭圆
于
两点,且直线
的斜率分别是
,若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9545456fff81a9f9c108f0451dba52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca3fc5956c764939bd36d3414c71b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)点A是椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](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/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5b321a5a214831f7a203615a4dd0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-06-08更新
|
720次组卷
|
2卷引用:上海市大同中学2022-2023学年高二下学期期末考试数学试卷
2 . 已知椭圆C:
(
)经过
和
两点,则C上的点到右焦点距离的最小值为( )
![](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/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310f780f4f03699023b1322a1e002539.png)
A.![]() | B.1 | C.2 | D.3 |
您最近一年使用:0次
2024高二·江苏·专题练习
解题方法
3 . 已知椭圆C关于x轴,y轴都对称,并且经过两点,
.
(1)求椭圆C的方程;
(2)直线l经过椭圆C的左焦点且垂直于椭圆的长轴,与椭圆C交于D,E两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
您最近一年使用:0次
名校
4 . 已知椭圆
的左顶点为
,圆
经过椭圆
的上、下顶点.
(1)求椭圆
的方程和焦距;
(2)已知P,Q分别是椭圆C和圆O上的动点(P,Q不在坐标轴上),且直线PQ与x轴平行,线段
的垂直平分线与y轴交于点
,圆
在点
处的切线与y轴交于点
.求线段
长度的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bef6c893f1c2a1548abf0ac2c79ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知P,Q分别是椭圆C和圆O上的动点(P,Q不在坐标轴上),且直线PQ与x轴平行,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
5 . 已知椭圆
的长轴长为
,且过点
.记椭圆的左右焦点分别为
,
,过点
的直线l交椭圆C于不同的两点P、Q.
(1)求椭圆的标准方程;
(2)若以线段PQ为直径的圆过点
,求直线l的方程;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.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/40630a669f4eedf626bc24851df10c85.png)
(1)求椭圆的标准方程;
(2)若以线段PQ为直径的圆过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddd0a7d62c553d3ad17e2be6e8fdaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆
的离心率为
,且过点
,
分别为椭圆
的左右顶点,点
是椭圆
上异于
的动点,直线
与直线
分别交于
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/79ddd271-dd56-4886-a77d-b9bb71da7514.png?resizew=174)
(1)求椭圆的方程
(2)求线段
的长度的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269e3de2f365af371714d0f323ee2448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a345c0ab9bc098efa03e17ea556fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b141148d19998c842aee2e5b1de63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c86c60c1e2c03439a55ddfc9bd2a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/20/79ddd271-dd56-4886-a77d-b9bb71da7514.png?resizew=174)
(1)求椭圆的方程
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
解题方法
7 . 已知椭圆
的离心率
,且过点
.
(1)求椭圆
的方程;
(2)若过椭圆
右焦点
的直线与椭圆
交于
两点,与
交于点
,记
的率分别为
,试探究
的关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7725aa425a2cb5bcb7778a1247d3883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e09325b1852ea117c1fc43ce9078ad4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090c0ba4cadbd85bf1f04f0d962eb16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9532b3531a979e4751b383a1d1d415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
您最近一年使用:0次
2023高二上·江苏·专题练习
解题方法
8 . 求适合下列条件的椭圆的标准方程.
(1)长轴长是10,离心率是
;
(2)在
轴上的一个焦点与短轴两个端点的连线互相垂直,且焦距为6;
(3)经过点
,且与椭圆
有相同离心率的椭圆的标准方程.
(1)长轴长是10,离心率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2595e01e8751886a27862cce04e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b5e40f6bed77f87557f46b0f5cfe75.png)
您最近一年使用:0次
解题方法
9 . 已知椭圆T以坐标原点O为对称中心,以坐标轴为对称轴,且过
,
.
(1)求椭圆T的标准方程;
(2)若A、B为椭圆上两点,且以线段AB为直径的圆经过O点.
①求证:
为定值;
②求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f839491380e131c801e2c3c4a75bcdfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f854bbda125255ac766343c1caa71ec.png)
(1)求椭圆T的标准方程;
(2)若A、B为椭圆上两点,且以线段AB为直径的圆经过O点.
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785fc822e5e30c0a9b7fa56d7306809a.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
23-24高二上·江苏·单元测试
10 . 已知椭圆的中心在原点,焦点在x轴上,离心率为
,且椭圆经过圆
的圆心.
(1)求椭圆的方程;
(2)设直线l过椭圆的焦点且与圆C相切,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9072d89788ec91ec798e0caf64d0b0a.png)
(1)求椭圆的方程;
(2)设直线l过椭圆的焦点且与圆C相切,求直线l的方程.
您最近一年使用:0次