名校
解题方法
1 . 已知点
,
,
,
,动点S,T满足
,
,直线MS与NT交于一点P.设动点P的轨迹为曲线C.
(1)求曲线C的方程;
(2)直线
与曲线C交于A,B两点,G为线段AB上任意一点(不与端点重合),倾斜角为
的直线
经过点G,与曲线C交于E,F两点.若
的值与点G的位置无关,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fda01b6b4f046ccc60635caa4abdaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4899b8f0764345ac7399d0e485100d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e906fd0417da5fc28aef35041d616da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d419a3c588616c8e9765cd4bbb6190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d95b1f4b0a305ca1edb7f6157b02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289e9dc346f692d9220cf09eb5e02ec9.png)
(1)求曲线C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8f11320bdc7e93f7b7791f3efbb796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710372aba8843a8493c60419eb159199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebb97d15849e27442fe49f4856a9816.png)
您最近一年使用:0次
2 . 已知定点
和曲线
上的动点
,则线段
的中点
的轨迹方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1cf4e47257124a8ecc4135bcdbc0fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-02-04更新
|
681次组卷
|
6卷引用:四川省内江市威远中学校2022-2023学年高三下学期第一次月考数学(文)试题
四川省内江市威远中学校2022-2023学年高三下学期第一次月考数学(文)试题四川省内江市第六中学2022-2023学年高三下学期第一次月考理科数学试题四川省内江市第六中学2022-2023学年高三下学期第一次月考文科数学试题上海市青浦高级中学2020-2021学年高二上学期期中数学试题(已下线)第08讲 拓展二:圆锥曲线的方程(轨迹方程问题)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)(已下线)重难点突破05 求曲线的轨迹方程(十大题型)-1
3 . 已知点
,
,直线
与直线
的斜率之积为
,记动点
的轨迹为曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
的方程;
(2)设
为曲线
上的一点,线段
的垂直平分线交
轴于点
,若
为等边三角形,求点
的坐标﹒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
4 . 在平面直角坐标系中,曲线C的参数方程为
(
为参数),直线l的参数方程为
(t为参数).
(1)写出曲线C与直线l的普通方程;
(2)设当
时l上的点为M﹐点N在曲线C上.以坐标原点O为极点,x轴正半轴为极轴建立极坐标系,求线段
中点P的轨迹的极坐标方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ef09d524897bd8ea496d82bd24820e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafef8a2c66685feaf48c02311fb2b8b.png)
(1)写出曲线C与直线l的普通方程;
(2)设当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2022-04-08更新
|
1094次组卷
|
7卷引用:四川省达州市2022届高三第二次诊断性测试理科数学试题
名校
5 . 已知点
,
,点A满足
,点A的轨迹为曲线C.
(1)求曲线C的方程;
(2)若直线
与双曲线:
交于M,N两点,且
(O为坐标原点),求点A到直线l距离的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e56502edba9511c1ce84ecbf6d2e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d89e9d012179b974e2c6bb481fa07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b8dfe216ef4fed64026f3bf694cc23.png)
(1)求曲线C的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f8ae565db8a7d4b95fdd85e28afa2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4489ea382b7a51cd5fc8c5ae585a3ec4.png)
您最近一年使用:0次
2022-04-08更新
|
1966次组卷
|
5卷引用:四川省泸县第四中学2022-2023学年高三上学期第三学月考试数学(理科)试题
名校
解题方法
6 . 已知一动圆经过点
,且在
轴上截得的弦长为4,设动圆圆心的轨迹为曲线
.
(1)求曲线
的方程;
(2)过点
任意作相互垂直的两条直线
,分别交曲线
于不同的两点
和不同的两点
.设线段
的中点分别为
.
①求证:直线
过定点R,并求出定点R的坐标;②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99296bab1b42898e7ca336a822510258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f36374ce95a4945d0e58264c2b271f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.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/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764c199d659322854377a92fee97642d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
①求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
2022-04-06更新
|
318次组卷
|
3卷引用:四川省泸州市泸县第五中学2021-2022学年高二下学期第一学月(3月)考试文科数学试题
名校
7 . 已知圆C的圆心在直线
上,且过A(6,0)和B(1,5)两点.
(1)求圆C的标准方程;
(2)过点P(0,1)的直线l与圆C交于M,N两点:
①求弦MN中点Q的轨迹方程;
②求证
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5a43a9d4e949953d15c1e199c0cfef.png)
(1)求圆C的标准方程;
(2)过点P(0,1)的直线l与圆C交于M,N两点:
①求弦MN中点Q的轨迹方程;
②求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e057c31608d8a78166c09ddeb3a5a3.png)
您最近一年使用:0次
8 . 设点
为平面直角坐标系xOy中的一个动点(其中O为坐标系原点),点C到直线
的距离比到定点
的距离小1,动点C的轨迹方程为E.
(1)求曲线E的方程;
(2)若过点F的直线l与曲线E相交于A、B两点.
①若
,求直线l的方程;
②分别过点A,B作曲线E的切线且交于点D,若以O为圆心,OD为半径的圆经过点
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03aa99e2324be44cbf439a282a6e1c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2347bec7975dab2b8bce2fd19b1237d0.png)
(1)求曲线E的方程;
(2)若过点F的直线l与曲线E相交于A、B两点.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a9a49dc8499d6c3b73d633e20b9757.png)
②分别过点A,B作曲线E的切线且交于点D,若以O为圆心,OD为半径的圆经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2595e01e8751886a27862cce04e2d1.png)
您最近一年使用:0次
名校
解题方法
9 . 已知圆
过点
和
.
(1)求圆
的方程;
(2)已知动圆
和圆
外切且过点
,求圆心
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6274c127da66f147f5e7a6448b48c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7844d9391f8d73a30c85c607d6b4f3.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知动圆
![](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/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2022-12-05更新
|
234次组卷
|
2卷引用:四川省内江市第六中学2023-2024学年高二上学期第二次月考数学试题
10 . 已知直线
,
为平面内一动点,过
作
的垂线,垂足为
,且
(
为坐标原点),动点
的轨迹记为
.
(1)求
的方程.
(2)已知
,直线
与
交于A,B两点,直线PA,PB与
的另一交点分别是C,D,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a520beb0ae215a01f9de68d10d44d3.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2abe13e2d4176f55f71677bbbb6eb4.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/cffa35373ec4e4684107b42adb7a5161.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22840186db0afc0e2b2e8915ce79b998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71772103e821b6c2072643fedc867dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f438e4ed6330049084c850aaf64340dd.png)
您最近一年使用:0次
2022-03-04更新
|
406次组卷
|
2卷引用:四川省名校联盟2021-2022学年高三下学期2月大联考理科数学试题