已知向量
,
(
,
为实数),若向量
,
共线,则
的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff94142458df60c1b17d750fb864ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8549d982f0ae71f2faefef4030613c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
更新时间:2020-04-24 08:48:42
|
【知识点】 由空间向量共线求参数或值
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的法向量
,且直线
平面
,则实数
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