1 . 已知中心在原点的双曲线
的右焦点为
,直线
与双曲线
的一个交点的横坐标为
.
(1)求双曲线
的标准方程;
(2)过点
,倾斜角为
的直线
与双曲线
相交于
、
两点,
为坐标原点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36eaa4e819d4643ce02c8f3abf78b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affbd6f8a68da709698f5efa6853a0ae.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
您最近一年使用:0次
2 . 已知离心率为
的双曲线
的右焦点为
,
为坐标原点,以
为直径的圆与双曲线
的一条渐近线相交于
、
两点.若
的面积为2,则实数
的值为
A.2 | B.![]() | C.4 | D.8 |
您最近一年使用:0次
2019-02-12更新
|
621次组卷
|
3卷引用:【市级联考】河北省石家庄市2018-2019学年高二上学期期末考试数学(理)试题
【市级联考】河北省石家庄市2018-2019学年高二上学期期末考试数学(理)试题【市级联考】河北省石家庄市2018-2019学年高二上学期期末考试数学(文)试题(已下线)狂刷48 解析几何的综合问题-学易试题君之小题狂刷2020年高考数学(理)
3 . 双曲线的方程是
-y2=1.
(1)直线l的倾斜角为
,被双曲线截得的弦长为
,求直线l的方程;
(2)过点P(3,1)作直线l′,使其被双曲线截得的弦恰被P点平分,求直线l′的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ca2c58bd8093fd0b8c14e786db4930.png)
(1)直线l的倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a203d96e08717eb480e9ae4bcc35c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce5a9457039444014ef1857cf9bc6d4.png)
(2)过点P(3,1)作直线l′,使其被双曲线截得的弦恰被P点平分,求直线l′的方程.
您最近一年使用:0次
4 . 过双曲线
的右焦点作一条斜率为
的直线交双曲线于
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb8d7485cd1c68bc6ecd97b9f7a9944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知
,
是双曲线
(
>0,
>0)的两个焦点,
是经过
且垂直于
轴的双曲线的弦,若
=
,则双曲线的离心率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5b0b2c0a3223b2045569567900fc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5b0b2c0a3223b2045569567900fc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8468ada1f9ae26172046b278e987fe75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1508f3ca7797b21ee388b56410103c95.png)
A.2 | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
6 . 已知双曲线的中心在坐标原点,焦点
在坐标轴上,离心率为
,且过点
.
(1)求双曲线的标准方程;
(2)过右焦点且倾斜角为
的直线
与双曲线
相交于
两点,
为坐标原点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afe3dc719fe7e41ea1481720f75e960.png)
(1)求双曲线的标准方程;
(2)过右焦点且倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
您最近一年使用:0次
2019-01-10更新
|
327次组卷
|
2卷引用:【校级联考】福建省“华安一中、长泰一中、南靖一中、平和一中、龙海二中”五校2018-2019学年高二上学期第二次联考 数学(文)试题
7 . 已知椭圆
与双曲线
有公共焦点
,
为
与
的一个交点,
,椭圆
的离心率为
,双曲线
的离心率为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6abca6f67e3be488fb556ef8d1ee6.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50da60823b387df26f73e7c2bad6fcdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2328dd61f5117580006176fd96e5774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e93cab5d81788f45ea9f81fbf8ccbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acfc9319b4dfcefd8f0bb0338f7cbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f1e4ceab4a4272b1e8bb4f99edf144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933d1787b104269292a5a2bf69d13df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6abca6f67e3be488fb556ef8d1ee6.png)
您最近一年使用:0次
名校
8 .
分别是双曲线
的左右焦点,过
的直线
与双曲线的左右两支分别交于
两点.若
为等边三角形,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ba80be450e578bef55b932232e884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3440ec216343dc0ae11c8f79365317a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a45a7c190a78e7a5e3ccdcc8887c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5e56b5cbcf69756792fc934bcc20cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee82fb4503498e264a1f18b791610e46.png)
A.8 | B.![]() | C.![]() | D.16 |
您最近一年使用:0次
2018-11-28更新
|
625次组卷
|
2卷引用:【全国百强校】江西省南昌市第二中学2018-2019学年高二上学期期中考试数学(理)试题
名校
解题方法
9 . 已知
是双曲线
的右支上一点,
,
分别为双曲线的左、右顶点,
,
分别为双曲线的左、右焦点,双曲线的离心率为
,有下列四个命题中真命题个数为个.
①双曲线所有过焦点的弦中最短弦长度为
;②若
,则
的最大值为
;
③
的内切圆的圆心横坐标为
; ④若直线
的斜率为
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.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/168b3e4b1d6f04226fa2687a72a268b4.png)
①双曲线所有过焦点的弦中最短弦长度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9261ab6e76dc5d65784b4ac06e465b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc2e72fcd7f1265be7f760b8313f585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55bd41ebd1f495d5cc1ad808b244bea1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 斜率为2的直线
在双曲线
上截得的弦长为
,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c16db9fdc8966ee7278acad3cb9c0b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次