2020·全国·模拟预测
1 . 已知
,
分别为双曲线
的左、右焦点,过
的直线
与
的左右两支分别交于点
,
,若
是以
为直角的等腰直角三角形,则
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/8a2cfa22139b3e9c9a73500e1ba19f52.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/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/167863df11667e8bbdd204413d3b5137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efdd3eb5166d30689e3caccb1091a72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2 . 已知椭圆
:
和双曲线
:
的焦点相同,
,
分别为左、右焦点,
是椭圆和双曲线在第一象限的交点,
轴,
为垂足,若
(
为坐标原点),则椭圆和双曲线的离心率之积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29eb5ce3f09c49dfa489a3b0bd5beafb.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3a3db6d96518255f96ad7fc1ac98f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e6d509a2ef94926d12bf87e32af6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2020-12-04更新
|
1355次组卷
|
11卷引用:2022年1月浙江省普通高中学业水平考试数学仿真模拟试卷B
(已下线)2022年1月浙江省普通高中学业水平考试数学仿真模拟试卷B浙江省台州市六校2020-2021学年高三上学期期中联考数学试题(已下线)【新东方】412(已下线)专题15 双曲线(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题18 椭圆(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题20 椭圆(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题19 椭圆(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题14 双曲线(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题14 双曲线(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题2.5 圆锥曲线的共同性质-2020-2021学年高二数学课时同步练(苏教版选修1-1)(已下线)专题17 椭圆与双曲线共焦点问题 微点2 椭圆与双曲线共焦点常用结论及其应用(二)
解题方法
3 . 已知双曲线
的左、右焦点分别为
,直线
过左焦点
且与双曲线的左支交于
两点,且满足
,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/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad163a58a073393c7cebc88977b2ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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名校
4 . 已知双曲线
左、右焦点分别为
,点
在
右支上,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1565358ed95afa71757c1d7d1fd2ea.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d750ac23802aa73c47a1528227207485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907a3d466e71f798b44c0cfe3812fa9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1565358ed95afa71757c1d7d1fd2ea.png)
您最近一年使用:0次
2020-03-13更新
|
461次组卷
|
4卷引用:2019届黑龙江省学业水平考试数学(理科)试卷
名校
5 . 已知定点
是圆
上任意一点,点
关于点
的对称点为
,线段
的垂直平分线与直线
相交于点
,则点
的轨迹方程是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2028fc661d8bed30956dbcb349a2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ad9e94d07405a6be585f81a0d623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1eb15d354e4ef64e6f4297edc8acd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-03-13更新
|
605次组卷
|
4卷引用:2019届黑龙江省学业水平考试数学(理科)试卷