已知向量
,
,且
与
互相垂直,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cffbccebee6ecb2ce4e2ee34098d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf69da7be695933f84e54a7626933b21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.1 | B.2 | C.3 | D.4 |
更新时间:2022-02-15 14:11:19
|
【知识点】 空间向量垂直的坐标表示
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【推荐2】设直线
、
的方向向量分别为
,
,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8169659cd68bc61e27338cd8858b05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88e06bd20d958e6f25c17be0f279124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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