名校
1 . 已知
,
的夹角为
,则使向量
与
的夹角是锐角的实数
的取值范围是_____________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68ff5c1d130fadee0f402e8978d6fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1eea45a8f50799dbe8ac66d5b920cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39289d3709ba1e565b165c30ed981d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d9b365b2466a533660214924c540a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ad38a19d572370a44bfc49691f687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2018-08-13更新
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1744次组卷
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2卷引用:内蒙古平煤高级中学2017-2018学年高一下学期第二章单元检测数学试题