1 . 设双曲线
:
,
为其左、右两个焦点.
(1)设
为坐标原点,
为双曲线
的右支上任意一点,求
的取值范围;
(2)若动点
与双曲线
的两个焦点
的距离之和为定值,且
的最小值为
,求动点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d04cd7e62809f0b10f6a2770c2b6384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/804d1830b03f015f0dd6369ebb0e304f.png)
(2)若动点
![](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/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b681bef02a915fee809bdc32d7e31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2267442b286785e89a0b5fb19b039669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2018-06-16更新
|
828次组卷
|
7卷引用:专题3.2 双曲线(5个考点十大题型)(1)
(已下线)专题3.2 双曲线(5个考点十大题型)(1)上海市静安区2017-2018学年度第一学期高中教学质量检测高三数学试卷(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2017年上海市静安区高三上学期质量检测(一模)数学试题上海市奉城高级中学2020-2021学年高二上学期12月月考数学试题3.2.2 双曲线的几何性质(一)(同步练习提高篇)
名校
2 . 如图,
的顶点
在射线
上,
两点关于
轴对称,
为坐标原点,且线段
上有一点
满足
,当点
在
上移动时,记点
的轨迹为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/eb49bf0d-695d-4b2c-8f60-11863908d51b.png?resizew=99)
(1)求轨迹
的方程;
(2)设
为
轴正半轴上一点,求
的最小值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929a3c7c8e8cb1fc0ca92de901a87bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0315dbec6ca52bdd4b156a4483081d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/eb49bf0d-695d-4b2c-8f60-11863908d51b.png?resizew=99)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d903b1ff09e933b73ef0f75fc861dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a92b933377ae3453fb36a171c521c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d20fd487c74eec4c5bdc1a830da427d.png)
您最近一年使用:0次
解题方法
3 . 设实数
满足
,且
,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92419f2b721d0a82c18ccc138e61cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0d28f0f8c81d6b5ac2eb5365e46a68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
您最近一年使用:0次