如图,平行四边形ABCD中,O为对角线AC,BD的交点,E,F,G,H分别是AB,BC,CD,DA的中点.化简下列各式:
(1)
;
(2)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/4/6d305a21-2efb-4335-95e7-fc035dac2471.png?resizew=169)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fdbc315446914b3ed880b03de58c6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82330df70a77a466e1ae1589e563456.png)
19-20高一·全国·课后作业 查看更多[4]
人教B版(2019) 必修第二册 逆袭之路 第六章 6.1 平面向量及其线性运算 6.1.2 向量的加法(已下线)第六章 平面向量初步 6.1 平面向量及其线性运算 6.1.2 向量的加法人教B版(2019)必修第二册课本习题6.1.2 向量的加法(已下线)第九章 平面向量(知识归纳+题型突破)2-单元速记·巧练(苏教版2019必修第二册)
更新时间:2020-02-05 23:04:59
|
【知识点】 向量加法法则的几何应用解读
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5974831f14b975f18ba7e98f4a380b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ded2633578588a4543e396d49590b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f72f35b0475455007940e954d39792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4051a3d29e6910a9272f0e04d350f88c.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】如图,平行四边形ABCD中,已知
,
,设
,
.
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964390428270592/2965851709489152/STEM/fdeb5771-8847-48d7-a019-43a2acfca348.png?resizew=200)
(1)用向量
和
表示向量
,
;
(2)若
,
,求实数x和y的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7dbaf678b4994d3f9464e31b87dbb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edafc6b8043dcdbf67450c476dad73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac265febbf99dccf51aa0a2253e61f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44a918c7cfd942d3a53e584c26685a8.png)
![](https://img.xkw.com/dksih/QBM/2022/4/23/2964390428270592/2965851709489152/STEM/fdeb5771-8847-48d7-a019-43a2acfca348.png?resizew=200)
(1)用向量
![](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/ed2cf03ac7a1b0aba75daa3b9f9b5768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b8a2a41a8b50e10d68943e3f0f4e05.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f350ac24c1f442b5be04c23040a3e9e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa3d82bf388d22e386cd3cacc7573c7.png)
您最近一年使用:0次