解题方法
1 . 已知椭圆
:
经过点为
,且
.
(1)求椭圆
的方程;
(2)若直线
与椭圆
相切于点
,与直线
相交于点
.已知点
,且
,求此时
的值.
![](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/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.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/15b256345d7109e081b7c895591e995d.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/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3835e6398d18d162afebc92cd2ae9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
2021-08-16更新
|
672次组卷
|
8卷引用:广东省潮州市2021-2022学年高二上学期期末数学试题
广东省潮州市2021-2022学年高二上学期期末数学试题北京市延庆区2020-2021学年高二下学期期末考试数学试题广东省深圳市布吉中学2021-2022学年高二上学期期中数学试题(已下线)3.1.3直线与椭圆的位置关系(备作业)-【上好课】2021-2022学年高二数学同步备课系列(苏教版2019选择性必修第一册)广东省韶关市武江区广东北江实验中学2021-2022学年高二上学期第二次月考数学试题广东省化州市第三中学2021-2022学年高二上学期期末数学试题广东省茂名市高州市2021-2022学年高二上学期期末数学试题(已下线)高二上学期期末【全真模拟卷01】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
2 . 如图,已知椭圆
,
点是它的右端点,弦
过椭圆的中心
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/8a83a8fb-1303-4b83-9d97-4826ef8979c9.png?resizew=203)
(1)求椭圆的标准方程;
(2)设
、
为圆上不重合的两点,
的平分线总是垂直于
轴,且存在实数
,使得
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122316eff03aed18424fb93cd427a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd69522689b9418afd0c85a858322dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/8a83a8fb-1303-4b83-9d97-4826ef8979c9.png?resizew=203)
(1)求椭圆的标准方程;
(2)设
![](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/030314ca026d6b18481682f70f48d19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c2eb8fba6d7f1d21e2ada9cd35df85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2020-03-27更新
|
366次组卷
|
2卷引用:2019届广东省潮州市高三第二次模拟数学(文)试题
解题方法
3 . 已知椭圆
(
)经过点
,离心率为
,动点
(
).
(1)求椭圆的标准方程;
(2)求以OM(O为坐标原点)为直径且被直线
截得的弦长为
的圆的方程;
(3)设F是椭圆的右焦点,过点F作OM的垂线与以OM为直径的圆交于点N,证明线段ON的长为定值,并求出这个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc35409c8054fe18431c70e6fea0334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e905894201a07a9c8065595b57d895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5c215ae9fc6ea6c1ff3c28580f64dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
(1)求椭圆的标准方程;
(2)求以OM(O为坐标原点)为直径且被直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5e4f21b648c27d55b12c8d42ada6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(3)设F是椭圆的右焦点,过点F作OM的垂线与以OM为直径的圆交于点N,证明线段ON的长为定值,并求出这个定值.
您最近一年使用:0次
2016-12-03更新
|
962次组卷
|
6卷引用:2015届广东省潮州市高三上学期期末教学质量检测理科数学试卷