在△ABC中,
,△ABC的面积为
,D为线段BC上一点,且CD=2BD,点E在线段AD的延长线上,满足
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d11a5a756d8fdd7b294c4f5fd63467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21770c8f12013342228ea91215591c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e249652defe7d8570f69e5e4c90c76b0.png)
2021·全国·模拟预测 查看更多[3]
全国新高考2021届高三数学方向卷试题(B)(已下线)专题21 平面向量中最值、范围问题-学会解题之高三数学万能解题模板【2022版】 江苏省南京市金陵中学2021-2022学年高二下学期6月适应性考试数学试题
更新时间:2021-06-21 14:49:10
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【知识点】 向量在几何中的其他应用解读
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【推荐1】如图,正三角形
边长为2,
是线段
上一点,过
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【推荐2】已知
是锐角
的外接圆的圆心,且
,若
,则
=_______________ .
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