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解题方法
1 . (1)已知两点
、
,求直线
的一般式方程;
(2)已知两点
、
,求线段
的垂直平分线的斜截式方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)已知两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d429efe96d68065e7d433c996682791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2021-01-24更新
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308次组卷
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2卷引用:宁夏海原县第一中学2020-2021学年高一上学期期末考试数学试题
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2 . 已知三角形的三个顶点
,
,
,求:
(1)
边所在直线的方程,以及该边上中垂线所在直线的方程;
(2)
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac95dab5c3db41c5711a3c836b2f1419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d563e1fcd5af55a3d5aa96f1eb54fa25.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ff9d4fdd0d176042505b7aac016852.png)
您最近一年使用:0次