已知平面向量
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d648a2983c3265f953465f9a41c0966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e644e7a43f8ad92778e2ec7bcaad0e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
更新时间:2022-05-19 00:03:00
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