已知双曲线
的左右焦点为
,点
是双曲线上任意一点,若
的最小值是
,则双曲线
的离心率为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ba951ce58ff7fb59c57e2d349fdc4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fddc29037a26719130e6548f25a2500a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
2020·四川绵阳·模拟预测 查看更多[6]
四川省绵阳市2020届高三高考适应性考试(四诊)文科数学试题四川省绵阳市2020届高三年级高考适应性考试(四诊)理科数学试题(已下线)专题2.3 双曲线-2020-2021学年高二数学课时同步练(苏教版选修2-1)四川省泸州市泸县第四中学2022届高三三诊模拟考试理科数学试题四川省泸州市泸县第四中学2022届高三三诊模拟考试文科数学试题(已下线)3.2 双曲线
更新时间:2020-06-05 09:21:09
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填空题-单空题
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适中
(0.65)
解题方法
【推荐1】已知斜率为
的直线过双曲线
的右焦点
且交双曲线右支于A、B两点,
在第一象限,若
,则
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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【推荐2】已知椭圆
与双曲线
的离心率分别为
,
,且有公共的焦点
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f2fab709911b733964075390dd7f84.png)
___________ .若
为两曲线的一个交点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda59d9787314cc9ae5b122a4847e24e.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0399de4659dca7ca95ae7eda823ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde71eaaba1444a7a965721162fa9195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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您最近一年使用:0次
填空题-单空题
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适中
(0.65)
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解题方法
【推荐1】已知双曲线
(
,
),
分别为双曲线的左、右顶点及右焦点,点
为双曲线右支上异于
的动点,过
作直线
的垂线交
与点
,设点
的横坐标为
,则当
最大时,双曲线
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1e81a0995ee5492c4281539c65bf00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e82617e4586c46e55b27cd604db1d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
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【推荐2】已知
,点P满足
,动点M,N满足
,
,则
的最小值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96f0155ccaa463d45dbdecda29b6636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1442f2bcbe29f4b17ddc20bd9e52a519.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54674750d3dcacfbaf95ad3ea45e30d4.png)
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您最近一年使用:0次
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(0.65)
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解题方法
【推荐1】已知双曲线
(a>0,b>0)的左、右焦点分别为F1,F2.过点F2且斜率为
的直线与双曲线在第一象限的交点为M.若
,则此双曲线的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4486147249b5176c6c98a6847e09e8b9.png)
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您最近一年使用:0次
填空题-单空题
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适中
(0.65)
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解题方法
【推荐2】已知双曲线
的左、右焦点分别为
,
,过
的直线与
轴相交于点
,与
在第一象限的交点为
,若
,
,则
的离心率为______ .
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