已知椭圆
(
)与双曲线
有公共的焦点,
的一条渐近线与以
的长轴为直径的圆相交于
两点.若
恰好将线段
三等分,则
=__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cd361ce118bca96a731b241a9c587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b77c4a8dc7289c05ed0e5a96ff107ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a881309775c3b6a9f4ed408838666342.png)
20-21高二上·江苏徐州·阶段练习 查看更多[2]
更新时间:2020-10-24 15:01:05
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【推荐1】已知椭圆C:
的右焦点为
,F关于直线
的对称点Q在椭圆C上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7d35535919c91ba8a9ecea371d22d1.png)
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解题方法
【推荐2】已知
、
分别为椭圆
的左、右焦点,点
在椭圆
上,且
的垂心为
.则椭圆C的方程为________________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
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名校
解题方法
【推荐1】已知双曲线
的两条渐近线均与圆
:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d228f31835cfe53f1d430056748efc88.png)
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解题方法
【推荐2】点
到双曲线
的一条渐近线的距离为
,则双曲线的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252826b71515c2fe9e332635f68a5884.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
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