名校
1 . 已知三角形的三个顶点分别是
,
,
,求:
(1)
边所在的直线方程;
(2)
的外接圆方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcbc328ed803646d8646560050ed0ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7291b3d921f595f28960abcdce6dfbed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6558ff3d855d193152aeb9c39418fe.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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名校
2 . 已知圆
经过
,
两点,且圆心在
轴上.
(1)求直线
的方程;
(2)圆
的方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64264e5193807c5df01a3b5af1aebc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138b1fda3115968840c5bfbecaaad6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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