在平面直角坐标系
中,已知圆
经过点
,且与圆
相切于点
.
(1)求圆
的方程;
(2)圆
上是否存在点
,使得
?若存在,求点
的个数;若不存在,请说明理由;
![](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/8238bb883f17fcc90b77ba80c4d14916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0c6a7ca4e352b1560a092cc1261cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cec13dec8afb62deac170397efc604.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb344ce83a0c1859b622eeb47c1fe00e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
23-24高二上·辽宁·期中 查看更多[2]
辽宁省实验中学2023-2024学年高二上学期期中数学试题(已下线)2.1.4 圆与圆的位置关系(十大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
更新时间:2023-11-03 23:20:06
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【推荐1】已知两圆
:
和
:
.
(Ⅰ)判断两圆的位置关系;
(Ⅱ)求两圆公共弦所在直线方程;
(Ⅲ)求两圆公共弦的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3678c99ce9472ce7a8569eb94ab7949e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669c6ed7c2641177b2bd1c928d265f48.png)
(Ⅰ)判断两圆的位置关系;
(Ⅱ)求两圆公共弦所在直线方程;
(Ⅲ)求两圆公共弦的长度.
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【推荐2】已知圆
的圆心在直线
上,且圆
经过
两点.
(1)求圆
的标准方程;
(2)若点
满足:存在圆
上的两点
,使得
.求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ac1756e6cc3266bd7198a024f871af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07c32248841846124947b4658904e6b.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b312367cf51225ea3bfbee2103b0c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebced1a9e1829ffa331f7864a3857b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐1】如图所示,已知圆
与圆
外切,它们的半径分别为
、
,圆
与圆
、圆
外切.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/0c840110-7d59-4295-88be-b209c804627f.png?resizew=192)
(1)建立适当的坐标系,求圆
的圆心的轨迹方程;
(2)在(1)的坐标系中,若圆
的半径为
,求圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/0c840110-7d59-4295-88be-b209c804627f.png?resizew=192)
(1)建立适当的坐标系,求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在(1)的坐标系中,若圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
【推荐2】求半径为4,与圆
相切,且和直线
相切的圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b951fae70c2b497d795fb126e102cdcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
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