分别根据下列条件求圆的标准方程:
(1)圆心为
,且与x轴相切;
(2)过三点
.
(1)圆心为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf13ca48d84880eda039b99b49dcb41.png)
(2)过三点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcea9ead70862704771a597412d6f45.png)
23-24高二上·江苏淮安·阶段练习 查看更多[2]
江苏省淮安市涟水县第一中学2023-2024学年高二上学期第一次月考数学试题(已下线)专题09圆的方程(2个知识点4种题型)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)
更新时间:2023-10-14 15:10:03
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【推荐1】已知圆
经过点
,圆
的圆心在圆
的内部,且直线
被圆
所截得的弦长为
.点
为圆
上异于
的任意一点,直线
与
轴交于点
,直线
与
轴交于点
.
(1)求圆
的方程;
(2)求证:
为定值.
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(1)求圆
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(2)求证:
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【推荐2】已知圆C的圆心在直线
上,且过两点
.
(1)求圆C的方程;
(2)若直线l过原点且被圆C截得的弦长为2,求直线l的方程.
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(1)求圆C的方程;
(2)若直线l过原点且被圆C截得的弦长为2,求直线l的方程.
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适中
(0.65)
【推荐1】在平面直角坐标
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解答题-问答题
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适中
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名校
【推荐2】 已知Rt△ABC的顶点坐标A(-3,0),直角顶点B(-1,-
),顶点C在
轴
上.
(1)求BC边所在直线的方程;
(2)圆M为Rt△ABC外接圆,其中M为圆心,求圆M的方程;
(3)直线
与Rt△ABC外接圆相切于第一象限,求切线与两坐标轴所围成的三角形面
积最小时的切线方程.
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上.
(1)求BC边所在直线的方程;
(2)圆M为Rt△ABC外接圆,其中M为圆心,求圆M的方程;
(3)直线
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积最小时的切线方程.
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