已知
,
是不共线的两个向量,若对任意的
,
的最小值为1,
的最小值为1,若
,则
,
所成角的余弦值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8781f3a995d9f694c320fe19f77a43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161feb6fb9a3893fc5d7b398decd04e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
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20-21高三上·浙江绍兴·期末 查看更多[6]
2020届浙江省绍兴市诸暨市高三上学期期末数学试题2020届高三2月第02期(考点05)(理科)-《新题速递·数学》(已下线)专题6.3 平面向量的数量积及其应用(精讲)-2021年新高考数学一轮复习学与练(已下线)专题6.3 平面向量的数量积及其应用(讲)-2021年新高考数学一轮复习讲练测(已下线)专题6.1 平面向量的概念及其运算(讲)- 2022年高考数学一轮复习讲练测(新教材新高考)(已下线)专题25 平面向量数量积
更新时间:2020-02-01 17:30:01
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【推荐1】已知
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【推荐2】已知向量
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ffaae1b5eb029d0d726fdde99fe7c6.png)
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③
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
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