1 . 已知圆
的圆心在直线
上,且经过点
.
(1)求圆
的标准方程;
(2)过点
的直线
与圆
相交于
两点,且
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b740d1f7ec8da97b4bd1f55378f9fbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7263a99f3f22dae4adb58c3c65988959.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe3080ed8cb377910703dd956207fa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
2 . 已知圆
,点A、B在圆M上,且
为
的中点,则直线
的方程为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8b1d78729ca37fa15803db41841343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d059a0d71bddb677c603d84fac444b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2023-01-12更新
|
885次组卷
|
4卷引用:北京市顺义区2023届高三上学期期末考试数学试题
北京市顺义区2023届高三上学期期末考试数学试题江西省宜春市丰城第九中学2022-2023学年高二下学期开学质量检测数学试题(已下线)2.4.2 圆的一般方程(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)(已下线)专题11 直线与圆
名校
解题方法
3 . 已知圆
,圆
,直线
.
(1)求圆心
到直线
的距离;
(2)已知直线
与圆
交于
,
两点,求弦
的长;
(3)判断圆
与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea7ff36659ffdeb31ffcbb513d95aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed83a23b121d246c784e8c090b1426ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6834ba6de422d87eedd475e419af10fd.png)
(1)求圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/084cf5ffced059f5653ee2a1023518b7.png)
(3)判断圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2023-01-11更新
|
466次组卷
|
3卷引用:北京市密云区2022-2023学年高二上学期期末考试数学试题
4 . 已知圆
:
,直线
:
,则直线
被圆
所截得的弦长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c82a1fed135888e1c072bc5078fc8a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3420925dc4cc74b34f35f627119ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.5 | D.10 |
您最近一年使用:0次
名校
解题方法
5 . 已知直线l:
与x轴的交点为A,圆O:
经过点A.
(1)求r的值;
(2)若点B为圆O上一点,且直线
垂直于直线l,求弦长
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d230c11741700260723b295ca90e873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1410414ebd007a6aebfb75240e2b458f.png)
(1)求r的值;
(2)若点B为圆O上一点,且直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
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2023-01-05更新
|
549次组卷
|
3卷引用:北京市顺义区2022-2023学年高二上学期期末质量监测数学试题
6 . 已知
的三个顶点分别是
,
,
.
(1)求
的外接圆C的方程;
(2)求直线
被圆C截得的弦的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6419152065edb8cabf887b65adb4a73.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d06e4b6c3872f65e9acb295eb49a1e1.png)
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2023-01-05更新
|
643次组卷
|
3卷引用:北京市丰台区2022-2023学年高二上学期数学期末练习数学试题
名校
解题方法
7 . 已知圆
上有两个点
,且
为直径
(1)求圆
的方程;
(2)若直线
与圆
交于
,求
长度;
(3)已知
,求过点
且与圆
相切的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db6bfed5aae8c885278abb96e8a2bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aacc0092b7cf6df769b0ac128e81c582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6114947179bed8c2c86ac078e2f8497f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d086caf2e13e598f5e1534ecbaa6505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2022-12-15更新
|
465次组卷
|
2卷引用:北京市怀柔区第一中学2022-2023学年高二上学期12月月考数学试题
8 . 圆
截
轴所得弦的长度等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10de2683088e57585b9505d8e45070eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.2 | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . ①直线
和圆
交于
两点,若
,则
的值为___________
②圆
,直线
,当
变化时,
截得圆C弦长的最小值为2,则
=___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8f53a0e6f199c4b59253dbbc137c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4896f254406ddfe0744b63f10724e76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0907a673d52825cd7df84b400972d4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
②圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d6f36a6b7dbc4553f9d99370b7fe22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c548ef5ad86b7a300495982830f26303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 已知圆C经过两点
,
,且圆心在直线
上.
(1)求线段AB的垂直平分线的方程;
(2)求圆C的标准方程;
(3)求圆C被直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
截得的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5c320d78ef38e330176c335cc58e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8021eb28e9b6fa8b4e5b7a140d1f313a.png)
(1)求线段AB的垂直平分线的方程;
(2)求圆C的标准方程;
(3)求圆C被直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f999bcdcdc1b9d56e0639cadd96dbd.png)
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2022-11-10更新
|
473次组卷
|
2卷引用:北京市朝阳区北京中学2022-2023学年高一上学期期中数学试题