设向量
,
,若
,则k=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26bd821fc5ecef33610791ed751f97a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e553747284da1e33b1e94beb5bf97974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979d7b14d9d8cd1704481a330717c838.png)
20-21高一下·内蒙古赤峰·期末 查看更多[2]
更新时间:2024-01-12 21:18:27
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