平面向量
满足:
,且
.则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed41eea5886ac2958e0f8cd14cdbb54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fb061cfce0487a0c0e5b1f8e66ebd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a85f5ebe4055d4ba08e2e7742b8a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d824ad161a855e10672f5766b49ec9.png)
更新时间:2021-08-07 15:28:08
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