求过点
且与圆C:
相切的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad42625f296d2a4b65180e2f7b776beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a353d1a988596880c0a48c2303d20c2c.png)
更新时间:2023-12-20 11:15:56
|
【知识点】 过圆外一点的圆的切线方程
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】已知直线
经过点
,直线
截圆
的最长弦长为2,圆心为
.
(1)求圆
的标准方程;
(2)若直线
与圆
相切,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b5e076078240e0c5ad9763a9824d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3893fcd14417c75a59e44286dd6b00b1.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知圆C关于直线
对称,且过点
和原点O.
(1)求圆C的方程;
(2)设点
,求过点Q与圆C相切的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274852e643a635e7340efa732edddc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3263811a06227abf213822c14a314dc6.png)
(1)求圆C的方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f892feddc2a0c082c344796f6751fa.png)
您最近一年使用:0次