如图,在
中,
,M,N分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/9d115b47-d6f4-4f8e-9197-62a27ea79d8e.png?resizew=184)
(1)若
,求
.
(2)若
,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d85a98cad30c151ad133bc33ac70657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/9d115b47-d6f4-4f8e-9197-62a27ea79d8e.png?resizew=184)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed996149599e1cc07f422ade80dba7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37844a6a6111bd0bbf5fedc8b9acda5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9510e31464241ffcd627df20ba379d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
22-23高二上·浙江·期中 查看更多[4]
(已下线)高中数学-高二上-55(已下线)第六章平面向量及其应用(基础检测卷)第六章 平面向量及其应用(A卷·基础提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(人教A版2019必修第二册)(已下线)专题6.13 平面向量的综合运用大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)
更新时间:2022-12-16 22:27:00
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