椭圆
的左,右焦点分别为
,焦距为
,点
在
上,
,直线
的斜率为
(
为半焦距),则
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba2ec866549963a2faa1a98bd29175a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](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/2a649229b6afa314d5cb7d9a66115734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f4faed99e8f7100584d50eedea8c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
更新时间:2020-05-19 11:28:11
|
【知识点】 根据a、b、c求椭圆标准方程
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【推荐1】已知正三角形ABC的边长为4,则以点B,C为焦点,经过点A的椭圆标准方程 为________ .
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【推荐2】已知椭圆
的中心为原点
,焦点在
轴上,
上的点与
的两个焦点构成的三角形面积的最大值为
,直线
交椭圆于
于
两点.设
为线段
的中点,若直线
的斜率等于
,则椭圆
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3be72f3f0fc7f5c03660519f18a304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c513852d073790f48c3b76e064f647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61588617d22abd00af4ca489bb3a8787.png)
您最近一年使用:0次