已知空间中三点
,
,
,设
,
.
(1)若向量
与
互相垂直,求k的值;
(2)若
,且
,求向量
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5e428213f946350934bc876fba5514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9eaf8136d289e745dd56ec4642aa7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642abd464232937a2d8e6ebc70273f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d458bed4c0f3e91667eb8705c9c90d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415c6484536cc61efd5529fcb0b15eb9.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9441846da0868582298cece138bec3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a1fa7538549bf04c02a09ead1745ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78aefee3211ca8d99b9af016e87617ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
更新时间:2023-09-27 18:13:32
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【推荐1】如图,在空间直角坐标系
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![](https://img.xkw.com/dksih/QBM/2021/11/9/2847578336075776/2913601303289856/STEM/e6580c59-178e-4c33-9ef3-56b0573a490b.png?resizew=166)
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(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88b43edf10fc6ac72ad194082a03e7c.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1307cc4692a34308f7e534e56882b76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4bfe9d923836314f485a36231eae28.png)
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解答题-问答题
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较易
(0.85)
解题方法
【推荐2】已知空间三点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339b7f0fc7218b13e534ca3bd28b2840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37906cac34ab721e14debf49606ec14c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2190e5a0c640a2d175885a01894059a8.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381e953f1ac4384f5e92580a86416750.png)
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名校
解题方法
【推荐1】已知
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(2)
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【推荐2】设平面
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