名校
解题方法
1 . 已知圆
的圆心在直线
上,且与直线
相切于点
,直线
与圆
交于
,
两点.
(1)求圆
的方程;
(2)是否存在直线
,使以
为直径的圆过点
?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4407788e4dc88210bca71a2551d4f2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b78b98443d32512ddcfe86aefd507db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a20a61d384b658080b92d8c1a9e7c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5568579340b4a3daf3f01b6dbc4048a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a94f96470492b394f66f2314852f415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
2 . 方程
表示一个圆,则m的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8669ea1dcc9c9ef6c9273695493ea24b.png)
您最近一年使用:0次
2016-12-04更新
|
699次组卷
|
3卷引用:2015-2016学年江苏省连云港东海县房山高中高一下期中数学试卷
名校
3 . 直线
与曲线
恰有一个公共点,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07565f10847840e0fb07b05218ad17fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/690796c435e1655e48b06e6e33c2304e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
4 . 在平面直角坐标系
中, 设
顶点坐标分别为
,
,(其中
,
),圆
为
的外接圆.
(1)当
时,求圆
的方程;
(2)当
变化时,圆
是否过某一定点?若是,求出定点的坐标,若不是,请说明理由;
(3)在(1)的条件下,若圆
上存在点
,满足
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdeea15c77624de1f49445c18bc9d321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a981fb29b651cfdbd60c30b9781773c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229d55eeae0ce82c467bd1e5686d8ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c7630484d76b37662fe1c4ebdf2f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)在(1)的条件下,若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d4a3e55f3825b0be96cace56cc6ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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10-11高三下·吉林延边·阶段练习
解题方法
5 . 求过两圆x2+y2+6x-4=0和x2+y2+6y-28=0的交点,且圆心在直线x-y-4=0上的圆的方程.
您最近一年使用:0次
2017-12-04更新
|
403次组卷
|
5卷引用:2013-2014学年江苏省连云港市灌云县四队中学高一三月月考数学试卷
(已下线)2013-2014学年江苏省连云港市灌云县四队中学高一三月月考数学试卷(已下线)2011届吉林省汪清六中高三第二学期3月月考数学试卷人教A版高中数学必修二4.2.2 圆与圆的位置关系2第四章 第二节4.2直线、圆的位置关系(已下线)第09讲 圆与圆的位置关系-【暑假自学课】2023年新高二数学暑假精品课(苏教版2019选择性必修第一册)
2014·江苏连云港·二模
名校
解题方法
6 . 在平面直角坐标系
中,已知点
在圆
:
内,动直线
过点
且交圆
于
,
两点,若
的面积的最大值为
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bfdb562fbd129ffc213acdfa2f9327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1adad76775eef272fe3e3d1fc56b4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c748e40ba21ac5063d3bccaa57ef278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-04-22更新
|
111次组卷
|
6卷引用:2014届江苏省连云港市高三3月第二次调研考试理科数学试卷
(已下线)2014届江苏省连云港市高三3月第二次调研考试理科数学试卷(已下线)2014届江苏省连云港市高三3月第二次调研考试文科数学试卷2015届江苏省如东高中高三上学期周练六理科数学试卷2015届湖北武汉华中师大附中高三上学期期中理数学试卷(已下线)《2018届优等生百日闯关系列》【江苏版】专题一 第五关 以圆或隐圆为背景的填空题四川省绵阳市绵阳南山中学2019-2020学年高二上学期9月月考数学试题
7 . 已知圆
:
,直线
:
.
(1)当直线
与圆
相切时,求实数
的值;
(2)当直线
与圆
相交于
、
两点,且
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f92763aee8b46104ba46efd7a903146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f05445872edd50de352a95daaddd35.png)
(1)当直线
![](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/0a6936d370d6a238a608ca56f87198de.png)
(2)当直线
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedd51383f8f047f565191b128cec637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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13-14高一下·江苏连云港·期末
解题方法
8 . 已知圆
关于
轴对称,圆心在
轴上方,且经过点
,被
轴分成两段弧长之比为
,则圆
的标准方程为_____ .
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/05d46de7248e4f169305cc572d37a03f.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/9b4a8ddf1bbf4710aa027a04f2e2dbc7.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/6ef39a39003b4dd6a2394dd2a72d2e1f.png?resizew=13)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ea4edb43ed51e84f8f5ae5b6a4a841.png)
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/6ef39a39003b4dd6a2394dd2a72d2e1f.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/fea92686813640feac7e0e8d5fc112f7.png?resizew=25)
![](https://img.xkw.com/dksih/QBM/2014/9/29/1571867983675392/1571867989286912/STEM/05d46de7248e4f169305cc572d37a03f.png?resizew=16)
您最近一年使用:0次
10-11高一下·江苏连云港·期末
解题方法
9 . 方程
的实根的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21db0f6841c3598ba82ea67c6e6cd4a8.png)
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10 . 圆心为
,半径为
的圆的标准方程为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193d1f81ec33e9c6126cbb65348f0480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
您最近一年使用:0次