如图:已知双曲线
中,
为左右顶点,
为右焦点,
为虚轴的上端点,若在线段
上(不含端点)存在不同的两点
,使得
构成以
为斜边的直角三角形,则双曲线离心率
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb722e537fa8367505dfb0fad986e29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a730cb4db9886cc620c806b9ce3c25b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/ae42886b-2cac-4c95-95cb-42fe07281124.png?resizew=177)
更新时间:2019-04-12 12:49:26
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【知识点】 求双曲线的离心率或离心率的取值范围
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较难
(0.4)
【推荐1】已知
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,则过点
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填空题-单空题
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较难
(0.4)
名校
解题方法
【推荐2】已知双曲线
与直线
交于M,N两点(点M位于第一象限),点P是直线l上的动点,点A,B分别为C的左、右顶点,当
最大时,
(O为坐标原点),则双曲线C的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b07c38ef0b4fedfd1507c8eeaa2fa4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
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