已知三角形
的三个顶点
.
(1)求
边所在直线的方程;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dea43a307a8f73c94a231d78562880.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2022-10-27 10:50:54
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【推荐1】已知△
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(2)若
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【推荐2】△ABC的内角A,B,C的对边分别为a,b,c,角A,B,C成等差数列,a=2.
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【推荐1】已知三角形ABC的顶点为
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【推荐2】直线
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