已知直线
与椭圆
:
(
)相交于
两点,且线段
的中点
在直线
:
上,椭圆
的右焦点
关于直线
的对称点在圆
上,则椭圆
的方程是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec89d17a1b8f7961e2f1f27c2d50685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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18-19高三上·江苏无锡·开学考试 查看更多[3]
江苏省无锡市第一中学2018-2019学年高三上学期期初理科数学试题(已下线)3.1 椭圆的标准方程-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) (已下线)专题1 求方程运算(提升版)
更新时间:2020-04-23 13:36:02
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【推荐1】在等腰直角三角形
中,点
是边
异于
、
的一点.光线从点
出发,经过
、
反射后又回到点
(如图).若光线
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_________
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【推荐2】已知椭圆
的左、右焦点分别为
.若
关于直线
的对称点
恰好在
上,且直线
与
的另一个交点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf7410fa26ffad9af6c0a992103b6b1.png)
__________ .
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【推荐1】已知椭圆C:
(a>b>0)的焦距为2.准线方程为x=3,则该椭圆的标准方程是_______ ;直线
与该椭圆交于A,B两点,则AB=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
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解题方法
【推荐2】已知椭圆
的一个焦点与抛物线
的焦点重合,过点
且斜率为
的直线交椭圆
于
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两点,若
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的中点,则椭圆
的方程为 __ .
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