1 . 在平面直角坐标系中,已知圆
过以下4个不同的点:
.
(1)求圆
的标准方程;
(2)先将圆
向左平移
个单位后,再将所有点的横坐标、纵坐标都伸长到原来的
倍得到圆
,若
两个点分别在直线
和
上,
为圆
上任意一点,且
(
为常数),证明直线
过圆
的圆心,并求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc073eaccad2ef0f81ddb874fb0b63a.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
(2)先将圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa585b9257ed0798213a9ae9b87d291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7593c56f77063c8c578cb6d7f23f084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2 . 在平面直角坐标系xOy中,对于⊙O:x2+y2=1来说,P是坐标系内任意一点,点P到⊙O的距离SP的定义如下:若P与O重合,SP=r;若P不与O重合,射线OP与⊙O的交点为A,SP=AP的长度(如图).
(1)直线2x+2y+1=0在圆内部分的点到⊙O的最长距离为_____ ;
(2)若线段MN上存在点T,使得:
①点T在⊙O内;
②∀点P∈线段MN,都有ST≥SP成立.则线段MN的最大长度为_____ .
(1)直线2x+2y+1=0在圆内部分的点到⊙O的最长距离为
(2)若线段MN上存在点T,使得:
①点T在⊙O内;
②∀点P∈线段MN,都有ST≥SP成立.则线段MN的最大长度为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/5e9a70be-a49c-4aa7-9aa6-a7fbf3bca827.png?resizew=125)
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名校
3 . 已知a、b、c为
的三边长,直线l的方程
,圆
.
(1)若
为直角三角形,c为斜边长,且直线l与圆M相切,求c的值;
(2)若
为正三角形,对于直线l上任意一点P,在圆M上总存在一点Q,使得线段
的长度为整数,求c的取值范围;
(3)点
,
,
,
,设E、F、G、H四点到直线l的距离之和为S,求S的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40b8573cbf3819b21d488b2e26fb545.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b1113864968119e61aeee9ba9c613b.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34954ec7b7da17e33086e353bc774672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ca5e715f2008308331aabf5db17201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8520a14da6394d9cbdb3ce781cff511b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1e70cf31db4328a0e418009a60502f.png)
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4 . 点
在直线
上,且点
始终落在圆
的内部或圆上,那么
的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9c730266ecf448c14608e24d37b986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066477a75cd296e838a4569f31be7a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578a28b3db501179bc086beb4d05b4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef65359fe2d2401160bfc212c2e6491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
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名校
5 . 已知
,点
在直线
上,点
在圆
上,则
的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274852e643a635e7340efa732edddc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168369ce9de586230d93f22a7276845a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5aa1ea16e5ba727bab26deedb4a83c0.png)
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2020-03-04更新
|
1301次组卷
|
5卷引用:云南省玉溪市红塔区第一中学2019-2020学年高二上学期期末数学(文)试题
云南省玉溪市红塔区第一中学2019-2020学年高二上学期期末数学(文)试题(已下线)专题9.2 圆与方程(精练)-2021年高考数学(文)一轮复习学与练(已下线)2.4 圆的方程(精讲)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)江苏省苏州实验中学2021-2022学年高二10月份调研数学试题(已下线)第11讲 圆与圆的位置关系-【同步题型讲义】2022-2023学年高二数学同步教学题型讲义(人教A版2019选择性必修第一册)
名校
解题方法
6 . 已知动圆
和定圆
外切,和定直线
相切.
(1)求该动圆圆心
的轨迹
的方程;
(2)过点
的直线
与
交于
两点,在曲线
上存在一点
,使得
为定值,求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce769d55393c86ae6c312de5158e4b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
(1)求该动圆圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363598fd39f2269952dc6ddd1201346c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d40f399c3737563ed161f2b7326a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
7 . 某地拟建造一座大型体育馆,其设计方案侧面的外轮廓如图所示,曲线
是以点
为圆心的圆的一部分,其中
;曲线
是抛物线
的一部分;
,且
恰好等于圆
的半径.假定拟建体育馆的高
(单位:米,下同).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/3db6c469-33cc-437b-93a0-637ea83bb392.png?resizew=156)
(1)若
,
,求
、
的长度;
(2)若要求体育馆侧面的最大宽度
不超过
米,求
的取值范围;
(3)若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074a95728962a5cf606dce0ccd1b52ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246518655504f9faaabcda467b8a9f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4ab7e657f01bdfa235f8c4d6681d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186c758f824939fc7de1be6b09506fc5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/18/3db6c469-33cc-437b-93a0-637ea83bb392.png?resizew=156)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843c9013e16ce26a4be297f1b61419fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7e0c8d8b6ac10b88aea344bf75a90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)若要求体育馆侧面的最大宽度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86608326541db75771f5de9db6187e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e469fee398e9ef371baf1b91cba2b0eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2020-02-10更新
|
956次组卷
|
3卷引用:2016届上海市徐汇区高三上学期期末学习能力诊断(文)数学试题
18-19高一·全国·假期作业
8 . 设两圆
,
都和两坐标轴相切,且都过点
,则两圆心的距离
等于 ______ .
![](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/d8ce2830528c2ea6b5d4df0c77644e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395f366e97a5a7ec8f12bff2f8028ae0.png)
您最近一年使用:0次
名校
9 . 已知圆O:
(O为原点),与x轴不重合的动直线
过定点D(m,0)(m>r>0).且与圆O交于P、Q两点(允许P、Q重合),点S为点P关于x轴的对称点.
(1)若m=2,r=1,P、Q重合,求直线SQ与x轴的交点坐标;
(2)求△OSQ面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3503d330608e7138d1b529aba4512fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)若m=2,r=1,P、Q重合,求直线SQ与x轴的交点坐标;
(2)求△OSQ面积的最大值.
您最近一年使用:0次
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10 . 已知平面直角坐标系中两点
、
,
为原点,有
.设
、
、
是平面曲线
上任意三点,则
的最大值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1659b946eb8d4239ddb4bad6a9ff8cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38bfda4c801fcd0a23bea177cbb6dc62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2344a74757d7a7951c6d5fe283fe9a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba1e1ca5040060dde64c667ec432a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f05eb4c4c6f9e6a702735bc0b5122d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c63f076ea3f49e5b4d69611e53fdce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdc455609e1d5448fdc72d3dbac6be5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b250fc4d10981212bec195ad43b3c8d.png)
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2019-08-17更新
|
932次组卷
|
6卷引用:上海市育才中学2018-2019学年高三下学期三模数学试卷
上海市育才中学2018-2019学年高三下学期三模数学试卷2018年上海市七宝中学高考模拟三模数学试题上海市上海交通大学附属中学2021届高三上学期期末数学试题上海市七宝中学2021届高三冲刺模拟卷一数学试题(已下线)专题18 直线和圆的方程(模拟练)-1(已下线)专题18 直线和圆的方程(练习)-1