解题方法
1 . 已知斜率为2
的直线l过双曲线
(
)的右焦点,若直线l与双曲线的左、右两支都相交,则双曲线的离心率e的取值范围是________ .若直线l与双曲线的一支相交,则双曲线的离心率e的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
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解题方法
2 . 已知
为坐标原点,
分别为双曲线
的左、右焦点,以
为直径的圆与
的渐近线在第一象限的交点为
,则点
的横坐标为___________ ;点
,若
,则
的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f236182642bce92ffb3668b325ea5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c35ef466cd62d4b222bbef1cb8daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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3 . 已知数列
是等比数列,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fed253ffc416cd3eb73847536053cc3.png)
______ ,圆锥曲线
的离心率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28ef6f1b2279af482557a8ea46f2e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa1be076e9b11567bf29a2fa4f6aa93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fed253ffc416cd3eb73847536053cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96fa93cf7076c39bcf30bb35c109141c.png)
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2022-10-24更新
|
384次组卷
|
3卷引用:天津市四校(杨柳青一中、咸水沽一中 、四十七中,一百中学)2020-2021学年高二上学期期末联考数学试题
天津市四校(杨柳青一中、咸水沽一中 、四十七中,一百中学)2020-2021学年高二上学期期末联考数学试题吉林省吉林市第一中学2022-2023学年高二上学期期末数学试题(已下线)高二上学期期末【全真模拟卷01】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
解题方法
4 . 已知双曲线
,焦点
,左顶点
,若过左顶点
的直线和圆
相切,与双曲线在第一象限交于点
,且
轴,则直线的斜率是 _____ , 双曲线的离心率是 _________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffe86d5d0c47ec86df798d225060048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f236182642bce92ffb3668b325ea5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a76cb701e4ebd9ab2c586f9745490f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0803835d6f594a60bd16c823e3ad2cd6.png)
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2022-01-12更新
|
312次组卷
|
3卷引用:浙江省绍兴市诸暨海亮高级中学2021-2022学年高三上学期选考模拟最后一测数学试题
名校
5 . 已知
,
是双曲线
的左、右焦点,点
,且
,则双曲线
的离心率为___________ ,若点
是双曲线
右支上一动点,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfec6616c8296af8e7509c8378b0ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89411d4e5574780f523e4eb3166c48b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939042591b51192731b433f61b286073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ae1d99b8b14945855c7831ab2d0d3.png)
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解题方法
6 . 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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f2fab709911b733964075390dd7f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda59d9787314cc9ae5b122a4847e24e.png)
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2021-12-02更新
|
315次组卷
|
7卷引用:【新东方】高中数学20210527-006【2021】【高二下】
(已下线)【新东方】高中数学20210527-006【2021】【高二下】重庆市江津中学校2021-2022学年高二上学期期中数学试题人教B版(2019) 选修第一册 过关检测 第二章 2.6.2 双曲线的几何性质湖南省岳阳市岳州中学2021-2022学年高二上学期12月月考数学试题2018年浙江省新高考仿真训练卷(二)(已下线)专题9.6 双曲线(精练)-2021年高考数学(理)一轮复习讲练测(已下线)专题17 椭圆与双曲线共焦点问题 微点4 椭圆与双曲线共焦点综合训练
名校
解题方法
7 . 已知双曲线
的左、右焦点分别为
、
,直线
与双曲线
的一个交点为点
,与双曲线
的一条渐近线交于点
,
为坐标原点,若
,则双曲线
的离心率为___________ ,渐近线方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd01cc7526850a98d9266cdec6445ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13531f26a4529cda12acded979b7d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2021-11-29更新
|
287次组卷
|
2卷引用:福建省连城县第一中学2021-2022学年高二上学期期中考试数学试题
8 . 已知函数
的图像是双曲线,则它的离心率是_________ ;双曲线
的离心率是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76327e9dd8efee9a2223424cbb950015.png)
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解题方法
9 . 双曲线
的左、右焦点分别为
,过右焦点
的直线
交双曲线
于
两点,
为等边三角形,若
、
两点都在右支上,则双曲线的离心率为___________ ;若
、
两点分别在左、右两支上,则双曲线的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b9e73b362e724fa3db6c1c13fa26da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc314b2d4969b44e699f0fae1a669ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff29a91173bc36d8640f9ff76e61f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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2021-11-17更新
|
636次组卷
|
2卷引用:吉林省东北师范大学附属中学2021-2022学年高二上学期期中考试数学试题
名校
解题方法
10 . 设
是双曲线
上一点,
是
的左焦点,
是
右支上的动点,则
的离心率为______ ,
面积的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b66d95c91a2a594266c22d341bfabc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4e568d9cd57c442f011a787ab8aaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6380c54a58ed53ebe8977402b42c960.png)
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2021-10-07更新
|
417次组卷
|
2卷引用:河南省2020-2021学年高二下学期期末数学(理)试题