解题方法
1 . 在平面直角坐标系
中,若双曲线
的离心率为
,则实数
的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0619ed838062202bc875067201ab20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
2 . 设点
,
分别为双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
的左、右焦点,点
,
分别在双曲线
的左、右支上,若
,
,且
,则双曲线
的离心率为
![](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/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f311053d11884b1a21d5f9b5724996c6.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de76db1224e1b11d4700bb97d074991e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53cf3917ad3d25c2f9e29bf3251a72af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa9c3b8582efe1c1381f5ed88b6db5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2020-05-13更新
|
515次组卷
|
4卷引用:第39练 双曲线-2021年高考数学(理)一轮复习小题必刷
(已下线)第39练 双曲线-2021年高考数学(理)一轮复习小题必刷2020届华大新高考联盟高三4月教学质量测评数学(理)试题湖北省襄阳市第四中学2020届高三下学期第四次模拟考试数学(理)试题湖北省襄阳四中2020届高三高考数学(理科)四模试题
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解题方法
3 . 已知
是双曲线
的右焦点,点
在
的右支上,坐标原点为
,若
,且
,则双曲线
的离心率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38871ad7c60b9a1f55ea56ab406e825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eeca7935e832c5f1d2a588a33b83f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2020-05-11更新
|
145次组卷
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2卷引用:狂刷44+双曲线-学易试题君之小题狂刷2020年高考数学(理)
解题方法
4 . 函数
在
处的切线与双曲线
的一条渐近线平行,则双曲线的离心率是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d156057af4ecc98de851cbd2ac06e871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
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解题方法
5 . 在
中,
,
.若以
,
为焦点的双曲线经过点
,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.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/c5db41a1f31d6baee7c69990811edb9f.png)
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2020-05-11更新
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876次组卷
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5卷引用:10.4 双曲线(精讲)
解题方法
6 . 已知双曲线
右焦点为
,过
且垂直于
轴的直线与双曲线交于
,
两点,抛物线
的焦点为
,若
为锐角三角形,则双曲线的离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe294e939b9fb81256d7218a773b5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/9278ebd294ff78bb178c0052ea92b159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
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2020-05-09更新
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611次组卷
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6卷引用:考向34 抛物线(重点)
名校
解题方法
7 . 双曲线E:
的一条渐近线与圆
相交于
若
的面积为2,则双曲线
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893f6f9256d7e91289d294479ec75c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-27更新
|
416次组卷
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5卷引用:专题07 直线与圆(分层练)
解题方法
8 . 在平面直角坐标系
中,双曲线
的焦距为
,若过右焦点且与
轴垂直的直线与两条渐近线围成的三角形面积为
,则双曲线的离心率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dcc91c2ffb5571eaf944c34f5e8ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566f7614d51f0348db982a9440de8844.png)
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9 . 已知双曲线
的离心率为
,其中一条渐近线的倾斜角
的取值范围是
,其斜率为
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90169fce9a634c0a67f03c9e062acfb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d7220f071260292535a020851bfd69.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 若双曲线
的右顶点
到一条渐近线的距离为
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceaeb4afbf2ef3fa85adf76118a19d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96ed073cbf9c38f596353a45f816df9.png)
A.![]() | B.![]() | C.3 | D.![]() |
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2020-04-20更新
|
1681次组卷
|
7卷引用:第43讲 双曲线(练) — 2022年高考数学一轮复习讲练测(课标全国版)