已知四边形ABCD的四个顶点是
,
,
,
,求证:四边形ABCD为矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91202a910f65c5197868e2eeccbb103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cad955f235c6dc064b5cc814b8c0656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3866d7491925391b0bd30994751369f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5e0005baadf4e655c1b377487c8af8.png)
21-22高二上·全国·课后作业 查看更多[6]
人教A版(2019) 选择性必修第一册 新高考名师导学 第二章 2.1 直线的倾斜角与斜率(已下线)1.1 直线的斜率与倾斜角-2021-2022学年高二数学链接教材精准变式练(苏教版2019选择性必修第一册)(已下线)2.1 (分层练)直线的倾斜角和斜率-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)(已下线)1.1 直线的斜率与倾斜角-2021-2022学年高二数学尖子生同步培优题典(苏教版2019选择性必修第一册)(已下线)2.1 直线的倾斜角与斜率人教A版(2019)选择性必修第一册课本习题 习题2.1
更新时间:2021-02-06 22:57:56
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【推荐1】(1)设坐标平面内三点
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【推荐2】已知直线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03117626c00dd035e2fc671b8c46dfa9.png)
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(2)
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【推荐1】已知直线
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【推荐2】已知
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