解题方法
1 . 已知双曲线
:
的左右焦点分别为
,
,以坐标原点
为圆心,
的长为半径作圆,
与
在第一象限交于点
,若直线
的倾斜角为
且
,则双曲线
的离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f95a62596525307343da7ff4b86cde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada6ee0a00eceecf57c94e29d73ed633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() | C.2 | D.4 |
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2019-04-07更新
|
713次组卷
|
2卷引用:【市级联考】湖南省衡阳市2019届高三第二次联考(二模)数学(理)试题
名校
2 . 已知点P是双曲线
y2=1上的一点,F1,F2是双曲线的两个焦点,若|PF1|+|PF2|=4
,则△PF1F2的面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23de59a835ae21011f9dbd9de7f09d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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3 . 已知点A(﹣
,0)和B(
,0),动点C到A、B两点的距离之差的绝对值为2.
(1)求点C的轨迹方程;
(2)点C的轨迹与经过点(2,0)且斜率为1的直线交于D、E两点,求线段DE的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求点C的轨迹方程;
(2)点C的轨迹与经过点(2,0)且斜率为1的直线交于D、E两点,求线段DE的长.
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2018-12-22更新
|
665次组卷
|
3卷引用:湖南省衡阳市第八中学2018-2019学年高二上学期期中考试数学(文科)试题
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解题方法
4 . 已知
,曲线
上任意一点
满足
;曲线
上的点
在
轴的右边且
到
的距离与它到
轴的距离的差为
.
(1)求
的方程;
(2)过
的直线
与
相交于点
,直线
分别与
相交于点
和
.求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87479f69c3994292ffdaf6acbdfa9231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1274b6988d5a2a08f1b70a896ea0eedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
(2)过
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbaa023d0248161917794c5592fd3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38299f4f2d4d0bd18d60554c8ed186e1.png)
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2017-06-06更新
|
1377次组卷
|
2卷引用:湖南省衡阳市第八中学2017-2018学年高二上学期期末考试数学(理)试题
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5 . 下面四个关于圆锥曲线的命题中,其中真命题为( )
A.设A、B为两个定点,K为非零常数,若![]() |
B.方程![]() |
C.双曲线![]() ![]() |
D.已知抛物线![]() |
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2020-09-15更新
|
328次组卷
|
3卷引用:湖南省衡阳市第一中学2019-2020学年高二上学期第三次月考数学试题
湖南省衡阳市第一中学2019-2020学年高二上学期第三次月考数学试题(已下线)第31练 抛物线-2021年高考数学一轮复习小题必刷(山东专用)江苏省南京市第十二中学2020-2021学年高二上学期第一次学情调研测试数学试题
名校
6 . 已知点
,动圆
与直线
相切于点
,分别过点
且与圆
相切的两条直线相交于点
,则点
的轨迹方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc7f9aef72ea48e00a25afb5d875216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 已知双曲线的两个焦点为
、
,
是此双曲线上的一点,且满足
,
,则该双曲线的焦点到它的一条渐近线的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bac496f0797d5f4480f89c3d4463a96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372dc59109dc95343d89ad941fade047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa093317a6cfccae7c54fa5bc893d84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390619198840ad4553877a189e3ef3b1.png)
A.3 | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2018-04-24更新
|
617次组卷
|
4卷引用:湖南省衡阳市2018届高三第二次联考(二模)理科数学试题
湖南省衡阳市2018届高三第二次联考(二模)理科数学试题(已下线)《高频考点解密》—解密20 双曲线(已下线)解密18 双曲线-备战2018年高考文科数学之高频考点解密【全国百强校】辽宁省沈阳市东北育才学校2018届高三第八次模拟考试数学(文)试题
8 . 已知
、
分别为双曲线
:
的左、右焦点,
为双曲线
右支上一点,且
,则
外接圆的面积为( )
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad0c75ce33673ec4c425896e8619e4.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/19973f8d5f144416fdac0e155b2467af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 双曲线
:
(
,
)的两条渐近线互相垂直,
,
分别为
的左,右焦点,
点在该双曲线的右支上且到直线
的距离为
,若
,则双曲线的标准方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/2f54c00df9bcee7a3a885cbfcffe9d86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74599a172080e1cd8cb48c82a702e5d1.png)
A.![]() | B.![]() | C.![]() | D.以上答案都不对 |
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2017-04-11更新
|
668次组卷
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3卷引用:2017届湖南省衡阳市高三下学期第二次联考数学(理)试卷
2017届湖南省衡阳市高三下学期第二次联考数学(理)试卷(已下线)专题25 《圆锥曲线与方程》中的垂直问题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 新疆维吾尔自治区和田地区和田县2023届高三上学期期中教学情况调研数学(理)试题
解题方法
10 . 过双曲线
的左焦点
有一条弦
交左支于
、
点,若
,
是双曲线的右焦点,则
的周长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ca1b693159b7ade34ab038d76ad09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c8bf9d533edb79d4f66e7cb1a060a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50667ce76318b23b69ac6b8e16dc80d0.png)
A.28 | B.![]() | C.![]() | D.![]() |
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