已知
,
且满足
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b49af1e6d559056d69d5501ef7759d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8df2d35964250da9769d11b64dcc775.png)
更新时间:2021-03-08 18:52:34
|
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填空题-单空题
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较易
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解题方法
【推荐1】已知
、
是单位向量,且
,设向量
,当
时,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2868a9fe011f56a80c9d1a8ee4604d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36fe4e713c108e118522a99ecd683924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9675e0b50a3fc4448af82be6fc374dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af18326eda1ac67381c8047f2225030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fa6c3f9a042c3e852f4b9a7325817b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aea5095b28ccd541f92099975345aab.png)
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