设
,
,
为平面向量,若
,
,
,
,则
的最小值为_____ ,
的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf98be38b1f78afdab7aee33fd4eac00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c79a3df984288055b7bcfa602866bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c093e6eb2f2e263f2429553f199f835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e163ee5d616dff1d982182243a98ff7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b195aa36a3c2753ebf08cb464c52ad1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
更新时间:2016-12-04 01:15:32
|
【知识点】 向量在几何中的应用
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解题方法
【推荐1】在△ABC中,
,
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307a282c4f08779b076cf6489f7aa336.png)
_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1371fe98a65d8ebd840c8d98346b6d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c185466a3517b2f1453e175748963873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307a282c4f08779b076cf6489f7aa336.png)
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【推荐2】如图,菱形
的边长为
为
的中点,若
为菱形内任意一点(含边界),则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fde786c36bef809c54c30ceb868514c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92ed9c7d216873545ea59101b6ce1b.png)
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