已知棱长为1的正方体
中,E是
的中点,F是
的中点.以D为原点,
的方向分别为x轴、y轴、z轴正方向,建立如图所示的空间直角坐标系.求以下各点的坐标:A,B,
,E,F.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec05eeed2347fec928b7d6de3053f80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
更新时间:2023-09-17 11:27:48
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【知识点】 求空间图形上的点的坐标
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解答题-问答题
|
容易
(0.94)
【推荐1】在直三棱柱
中,
为等腰三角形,
,E、F分别是
、BC的中点,且
,
,请建立空间直角坐标系,并求各点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8f940b796af67206b3f9dd410a407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://img.xkw.com/dksih/QBM/2022/4/19/2961618987958272/2962789775081472/STEM/aff4a856-9b83-4267-9763-f358c21bfc7a.png?resizew=155)
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