名校
解题方法
1 . 已知点
和直线
,设动点
到直线
2的距离为d,且
.
(1)求点M的轨迹E的方程;
(2)已知
,若直线
与曲线E交于A,B两点,设点A关于x轴的对称点为C,证明:P、B、C三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f36374ce95a4945d0e58264c2b271f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7859abafc86cfcbfd3ea122d0148750.png)
(1)求点M的轨迹E的方程;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3348aa4cbf8f53e4ba7247acc94da5b.png)
您最近一年使用:0次
2 . 如图所示,一圆形纸片的圆心为
,
是圆内一定点(不同于点
),
是圆周上一动点,把纸片折叠使
与
重合,然后抹平纸片,折痕为
,设
与
交于点
,则点
的轨迹是_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2020/2/19/2402642033426432/2403793860837376/STEM/fcd1a147fdfb41d59217ae92bf0d0a50.png?resizew=109)
您最近一年使用:0次
2020-02-21更新
|
286次组卷
|
2卷引用:山西省山西大学附中2019-2020学年高二(12月份)第四次诊断数学(理科)试题
名校
解题方法
3 . 已知圆
的圆心为
,
,
为圆上任意一点,线段
的垂直平分线
与线段
的交点为
.
(1)求点
的轨迹
的方程;
(2)若过点
的直线
交曲线
于
,
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afc954e87bd737ec051d5c94837c8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92ed9c7d216873545ea59101b6ce1b.png)
您最近一年使用:0次
2018-04-27更新
|
1152次组卷
|
4卷引用:【全国校级联考】河南省豫南九校2017-2018学年高二下学期第二次联考数学(文)试题
【全国校级联考】河南省豫南九校2017-2018学年高二下学期第二次联考数学(文)试题湖南省常德市第一中学2022-2023学年高二下学期期中数学试题(已下线)《高频考点解密》—解密22 直线与圆锥曲线的位置关系(已下线)解密20 直线与圆锥曲线的位置关系-备战2018年高考文科数学之高频考点解密
解题方法
4 . 如图,在圆
上任取一点
,过点
作
轴的垂线段
,
为垂足. 当点
在圆上运动时,满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a18c25c18222ff775a2f4b5e75d17d.png)
的动点
的轨迹是椭圆,求这个椭圆离心率的取值范围( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/5e2a5d5c-dfdc-4e32-9a76-c9e40110f4f9.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89a03660c85fb78bd7fe82ee3068c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a18c25c18222ff775a2f4b5e75d17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7872f0996380cfedf9f4a50f9232b97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/5e2a5d5c-dfdc-4e32-9a76-c9e40110f4f9.png?resizew=163)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-04-09更新
|
622次组卷
|
2卷引用:重庆綦江区2017—2018学年度第一学期期末高中联考高二理科数学试题