1 . 已知动点
分别在直线
与
上移动,则线段
的中点P到坐标原点O的距离可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de17abedc76f9f3b5b618cfddb8e76c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451deb2efdc39b42c9dda544d614d677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-19更新
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2卷引用:河北省石家庄市精英中学2023-2024学年高二上学期第一次调研考试数学试题
2 . 过点P向圆
作切线,切点为A,过点P向圆
作切线,切点为B,若
,则动点P的轨迹方程为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6eadd1aa35dae9dacfcfb065cdbb9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1543db15ad1e251db19233650426e538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81529452eb2cb8578fd164db9e957ae.png)
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3 . 已知
,
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97df5ceec3ec2af6d75b71dee62c0027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7322fe6711f9925bb68973f73941a101.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知圆O:
,过点M作圆O的两条切线,切点分别为A,B,且直线
恒过定点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947bca78fd2d7a7436dd9dedbba3baa6.png)
A.点M的轨迹方程为![]() |
B.![]() ![]() |
C.圆O上的点到直线AB的距离的最大值为![]() |
D.![]() |
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2023-11-15更新
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2卷引用:河南省湘豫名校联考2023-2024学年高二上学期10月阶段性考试数学试题
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解题方法
5 . 已知动点
到
轴的距离等于它到
轴的距离的2倍.
(1)求动点
的轨迹
的方程,并说明轨迹
是什么图形:
(2)直线
与曲线
交于
两点,且点
是线段
的中点,求直线
的方程:
(3)直线
与曲线
交于
两点,且
,求直线
的方程.
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求动点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](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/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9602114f45bdcb304e02710ae7bc0e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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6 . 已知点
,点
是坐标原点,点
是圆
上的动点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06df45535ae4096cd0248bbf2b9e3d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab4344ce1d13d1b388739df5d3147d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b01425e07371052838a05f28a90d147.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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1490次组卷
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5卷引用:第2章:圆与方程章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)
(已下线)第2章:圆与方程章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)(已下线)2.4.2 圆的一般方程【第二练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)专题18 直线和圆的对称问题8种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教A版2019选择性必修第一册)(已下线)专题06 圆的方程8种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(苏教版2019选择性必修第一册)辽宁省大连市第八中学2019-2020学年高二上学期10月月考数学试题
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7 . 已知经过点
的两个圆
,
都与直线
,
相切,则圆心距
等于___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b337c32bd5408c0ed8a9ee9cde4cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be06299fc124d12d1ab40e25ba9a455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ad38fd233acb41c8cb205da9a3c01b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395f366e97a5a7ec8f12bff2f8028ae0.png)
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解题方法
8 . 已知点M,N在圆O:
上运动,点
,且
,Q为线段M,N的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a818aaefdfce4fbf93541424ab5b800c.png)
A.过点P有且只有一条直线与圆O相切 |
B.![]() |
C.点Q在直线![]() |
D.![]() ![]() |
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3卷引用:辽宁省实验中学2023届高三第五次模拟数学试题
9 . 在平面直角坐标系中,已知
的顶点坐标分别为
、
、
,点
在直线
上运动,动点
满足
,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87859748d7c7d665df7d430856bae01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcce0d8777fbf2c7c6e900caa9c92d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5790e2ddf449578bf6067842b359070f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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解题方法
10 . 如图,在平行四边形
中,点
是原点,点
和点
的坐标分别是
、
,点
是线段
上的动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/cb4907b9-b796-4a27-8b45-c9880a1bb7cc.png?resizew=130)
(1)求
所在直线的一般式方程;
(2)当
在线段
上运动时,求线段
的中点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/19/cb4907b9-b796-4a27-8b45-c9880a1bb7cc.png?resizew=130)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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