2010·山东济南·二模
解题方法
1 . 与圆
相切的直线与
轴,
轴的正半轴交于A、B且
,则三角形AOB面积的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b27032c80efe7e897e25c836dfaf6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/043842454211f7405ad74842e881f899.png)
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2 . 如图,已知过点
的光线,经
轴上一点
反射后的射线
过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/975ba51f-ed0d-4e64-ae95-0b45a6c30926.png?resizew=182)
(1)求点
的坐标;
(2)若圆
过点
且与
轴相切于点
,求圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00d5d8cc31aaca7fc2eafb99eac7629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0643ae2942b740d78b7ace0d4e630ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/3/975ba51f-ed0d-4e64-ae95-0b45a6c30926.png?resizew=182)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2016-12-03更新
|
476次组卷
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3卷引用:2014-2015学年江苏省东台市三仓中学高一下学期期中考试数学试卷
14-15高二上·安徽蚌埠·期末
名校
3 . 如果圆x2+y2-2ax-2ay+2a2-4=0与圆x2+y2=4总相交,则a的取值范围是_____ .
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2016-12-02更新
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1017次组卷
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5卷引用:江苏省南京市金陵中学2015-2016学年高二下学期数学周末作业(7)数学试题
江苏省南京市金陵中学2015-2016学年高二下学期数学周末作业(7)数学试题(已下线)2013-2014学年安徽蚌埠高二第一学期期末考试理科数学试卷(已下线)2013-2014学年安徽蚌埠高二第一学期期末考试文科数学试卷(已下线)考点45 直线与圆、圆与圆的位置关系(考点)-备战2021年新高考数学一轮复习考点微专题(已下线)第41讲 直线与圆、圆与圆的位置关系 (讲) — 2022年高考数学一轮复习讲练测(课标全国版)
名校
4 . 在平面直角坐标
中,已知圆
:
及点
,
,若圆
上存在点
使得
,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4005a14872f194130a95f6dae72295aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a290a27cce9bd59bb6d79822473d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9e13fd8d7227cdcd3a7dc025afa22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2卷引用:江苏省江阴市第一中学2018-2019学年高一下学期期中考试数学试题
5 . 根据下列条件,求圆的方程
(1)求经过两点
,且圆心在y轴上的圆的方程.
(2)圆的的半径为1,圆心与点(1,0)关于
对称的圆的方程.
(1)求经过两点
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172475056128/1572172480888832/STEM/1cedeb02cb514477aa2451fd1a628d9e.png)
(2)圆的的半径为1,圆心与点(1,0)关于
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172475056128/1572172480888832/STEM/ec02beadb3a041f6b67445eb8d2911b8.png)
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6 . 若直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
与圆
交于
、
两点,则
的面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97064fe140f10483e1b28ae0c3440ef8.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)
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2016-12-03更新
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883次组卷
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2卷引用:2014-2015学年江苏省盐城市高一下学期期末考试数学试卷
9-10高一下·江苏南京·期末
名校
7 . 以点
为圆心且与x轴相切的圆的方程为________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3902ec8b7c448598f3d80e3a0bb05a70.png)
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8 . 已知圆
和两点
,若圆上存在点
,使得
,则
的取值范围是___________ .
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495169011712/1572495174918144/STEM/70b12585628547bdb46b58be2eb91785.png?resizew=159)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495169011712/1572495174918144/STEM/e4d9e6a560f140a69404e303da3f63cc.png?resizew=172)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495169011712/1572495174918144/STEM/ad6bcf955ee141fb991873a0a9e5c0e8.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495169011712/1572495174918144/STEM/9989f05c22a84476bbb2af820b815daa.png?resizew=84)
![](https://img.xkw.com/dksih/QBM/2016/2/24/1572495169011712/1572495174918144/STEM/b11470f24e6a45ae84d9647ef9faddf3.png?resizew=17)
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2016-12-04更新
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6卷引用:2015-2016学年江苏省江阴市华士、成化、山观三校高二上期中数学卷
9 . 若直线
:
被圆
截得的弦长为2,则
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30be9baff9da707f2b7cd008a6e686f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df0d79e42d86b0def4caa10dffa75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 直线y=kx+3与圆(x-1)2+(y+2)2=4相交于M,N两点,若
,则实数k的取值范围是_____ .
![](https://img.xkw.com/dksih/QBM/2015/8/10/1572208682270720/1572208687988736/STEM/5f36eb8955624281887daf49a3e22c79.png?resizew=75)
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