已知向量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7df3e5b2178c00e4a366e058810cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17d72036ed4bd1cc22fd0767c193454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
更新时间:2021-05-09 07:52:47
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【知识点】 由向量共线(平行)求参数解读
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