已知向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d05e460fc4428e802e87283d4e1c87.png)
______ ;向量
在向量
的投影向量是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2651a1afcfc5cba54a7887dc6c2c1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5726789986d1641267c9aa4b1c8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d05e460fc4428e802e87283d4e1c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23bd18136e4e71e1e267bc9f8634b932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec82bd4e0fb7887e5999b8220f60b073.png)
更新时间:2021-09-08 23:22:02
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