如图,平面上有任意四点A,B,C,D,若
,运用向量的加法证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c8083a2d358a64b637d9a69b144711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da65df9df70430d0a095297a628f04c.png)
22-23高一·全国·课堂例题 查看更多[4]
湘教版(2019)必修第二册课本例题1.2向量的加法6.2.1向量的加法运算(已下线)6.2.1 向量的加法运算-高频考点通关与解题策略(人教A版2019必修第二册)(已下线)6.2.1向量的加法运算——课后作业(基础版)(试题)
更新时间:2023-10-02 14:27:02
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解答题-问答题
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较易
(0.85)
解题方法
【推荐1】已知在平行四边形ABCD中,M,N分别是DC,BC的中点.若
,
试用
,
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cafa58416add77352d62e3748b08c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955ce32b2720b1c43ad7767a87812266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833e1932d717cb075f8f2c021b42981b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5bca280c9c9b8c3ad3849c06b1106fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ff2787b82ef8c67abfb1535f5fd8cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/3/45fb9a2b-03a0-4014-be11-1b71f6d510c3.png?resizew=224)
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解答题-问答题
|
较易
(0.85)
【推荐2】已知向量
.
(1)若
,求向量
与
的夹角;
(2)在矩形
中,设
为
的中点,F为
的中点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233b0c21e68247545b1e5c39577ca666.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13869ca9b9e1bcacf0262f60eed05ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7655363c47b9bfecbeb4e17e3728c823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7173b357dec0dca7d6da123345089741.png)
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