在如图所示的试验装置中,四边形框架
为正方形,
为矩形,且
,且它们所在的平面互相垂直,N为对角线
上的一个定点,且
,活动弹子M在正方形对角线
上移动,当
取最小值时,
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d846e411df5bb4a01dfec088eba00a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6fbaad522c6c94a573fc0fd6832a62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13626203cdca0a9a35c2fe737edae68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a886f833b27b8c469f4a8f5bafb03901.png)
![](https://img.xkw.com/dksih/QBM/2021/11/12/2849588043554816/2849876778409984/STEM/91235d2a-df52-46ae-8001-3922f3db1ed5.png?resizew=247)
21-22高二上·广东广州·期中 查看更多[3]
广东省广州市协和中学2021-2022学年高二上学期期中数学试题(已下线)综合检测卷(能力挑战卷)-【一堂好课】2021-2022学年高二数学上学期同步精品课堂(人教A版2019选择性必修第一册)(已下线)第06讲 空间向量及其运算的坐标表示 (2)
更新时间:2021-11-12 20:32:03
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【推荐1】在空间直角坐标系O-xyz上,有一个等边三角形ABC,其中点A在z轴上.已知该等边三角形的边长为2,重心为G,点B,C在平面xOy上,若
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【推荐2】平行六面体
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【推荐2】在空间直角坐标系Oxyz中,P是坐标平面xOy内一动点,
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