如图,在
中,
是
的中点,
、
是
上的两个三等分点,
,
,则
的值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/7897ca77-7505-4cd7-b631-25bd1b3b5f62.png?resizew=173)
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2022高三·全国·专题练习 查看更多[3]
(已下线)第27讲 平面向量基本运算及线性表示-2022年新高考数学二轮专题突破精练(已下线)微专题05 妙用极化恒等式解决平面向量数量积问题-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)(已下线)重难点专题03 妙用极化恒等式解决平面向量数量积问题-【帮课堂】(苏教版2019必修第二册)
更新时间:2022-01-11 15:49:44
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【推荐2】如图,在
中,
,
是
上一点,若
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的值为( )
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【推荐1】如图,
是边长为2的正三角形,直线
围成一个正三角形
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