已知
,
,
.
(1)若四边形
是矩形,试确定点
的坐标;
(2)已知
为坐标原点,在(1)的情况下,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884a136bbe450646e23d42d09510da82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6319c844b45bbb2e94c38cd94afa9d.png)
(1)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19348b2adc60dcf0a21d8776682249b.png)
20-21高二上·上海嘉定·阶段练习 查看更多[3]
上海市嘉定区第一中学2020-2021学年高二上学期第一阶段考试数学试题天津市宝坻区第四中学2020-2021学年高一下学期第一次检测数学试题(已下线)第8章 平面向量【过关测试】-2020-2021学年新教材高一数学下册单元复习一遍过(沪教版2020必修第二册)
更新时间:2020-12-04 09:20:55
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