已知非零向量
,
满足|
|=1,
与
的夹角为30°,则|
|的最小值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2859333183a1d5749eac25f8b4e3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efda714bc270ccf8712aaf16f7b08b82.png)
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更新时间:2020-03-13 11:40:39
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