名校
解题方法
1 .
的顶点是
,
,
.
(1)求边
上的高所在直线的方程;
(2)求过点A,B,C的圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb9e88d3e58141dba299dcd8edc4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac06bc73b408c6a70bd0f6d24ebb7d2c.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求过点A,B,C的圆方程.
您最近一年使用:0次
2024-02-23更新
|
217次组卷
|
2卷引用:湖南省株洲市第二中学2021-2022学年高二上学期第三次月考数学试卷
2 . 已知圆C过点
,
,
.
(1)求圆C的标准方程;
(2)若过点C且与x轴平行的直线与圆C交于点M,N,点P为直线
上的动点,直线PM,PN与圆C的另一个交点分别为E,F(EF与MN不重合),证明:直线EF过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc43e72034cfce8e9d75b55c537287c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7ffc33191f71a87fc60694a54227ac.png)
(1)求圆C的标准方程;
(2)若过点C且与x轴平行的直线与圆C交于点M,N,点P为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
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3 . 平面直角坐标系中,圆M经过点
,
,
.
(1)求圆M的标准方程;
(2)设
,过点D作直线
,交圆M于PQ两点,PQ不在y轴上.
①过点D作与直线
垂直的直线
,交圆M于EF两点,记四边形
的面积为S,求S的最大值;
②设直线OP,BQ相交于点N,试证明点N在定直线上,求出该直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b42d63fab09f90a520a52c87ab3eb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab400b66fae56036c1e66c1e0a8fb899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e157d75836912739cfa68013a48f07.png)
(1)求圆M的标准方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d29d7fac4f150927e672507bdb26285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
①过点D作与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcad0585886e2d7bac28a0e292a1d37.png)
②设直线OP,BQ相交于点N,试证明点N在定直线上,求出该直线方程.
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4 . 已知圆
经过
三点.
(1)求圆
的方程;
(2)已知斜率为
的直线
经过第三象限,且与圆
交于点
,求
的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08615bf4c01a6335275a02c63743681.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68d65ed39a9dfd09c5b907b5de6b144.png)
您最近一年使用:0次
2024-01-22更新
|
222次组卷
|
3卷引用:河南省部分重点中学2023-2024学年高二上学期12月质量检测数学试题
名校
解题方法
5 . 已知圆
过点
,
,
三个点.
(1)求圆
的标准方程;
(2)过圆
外点
向圆
引两条切线,且切点分别为A,
两点,求
最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedad6bb70631b944c69f8f0b02b35d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)过圆
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
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名校
解题方法
6 . 求符合下列条件的曲线方程:
(1)求过
,
,
三点的圆的标准方程;
(2)求与双曲线
有共同渐近线且过点
的双曲线方程;
(3)顶点在原点,对称轴为坐标轴且过点
的抛物线的标准方程.
(1)求过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a0066672fdf6e591b842847e5a6c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fc75de69dcc72f51f5688c4ff10fdc.png)
(2)求与双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0017262e45089093f70001cae2c60257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c5ddc448bf32c33afee4b180b7b30f.png)
(3)顶点在原点,对称轴为坐标轴且过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcc512ec11bf8f6e0f42977dec712c0.png)
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名校
7 . 已知圆
,点
在圆
内部.
(1)求
的取值范围;
(2)若
,过点
作直线
的垂线
与圆
交于
两点,求
的外接圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7094de31b7527b72015933db6c28d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff58702fa978040dc5b2a8a5c19304c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
解题方法
8 . 已知圆C经过三点
,
,
.
(1)求圆C的方程;
(2)过点
作圆C的切线,求切线方程的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e584f799ea554fc5533925ead4672501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1bf8899b8865afe102aec97e340e45.png)
(1)求圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
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名校
解题方法
9 . 已知圆
的圆心在直线
上,点
,
都在圆上.
(1)求圆
的方程;
(2)求过点
且与圆
相切的直线
方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8a3365e99f926b1dafa901ab232152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22340d6f2582502d69a5cb85f446ff43.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a5e04c5187fb20415a59ce6adeed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-12-17更新
|
613次组卷
|
2卷引用:辽宁省沈阳市翔宇中学2023-2024学年高二上学期第二次月考测试数学试题
解题方法
10 . 已知圆
经过
中的三点,且半径最大.
(1)求圆
的方程;
(2)过点
的直线与圆
交于
两点(
在
轴上方),在
轴上是否存在定点
,使得
轴平分
?若存在,请求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b66ec9bf41dcc5784431ed5630f5261.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5b6926cdb99eb58070b8720718f71a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e8e435259ab192d798bb8bf7774cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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