在四边形ABCD中,已知
,
,求证:四边形ABCD是矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccecb2c6965297b0357d42e53503bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065257f6d449605ac86175fe9ac6b0df.png)
20-21高一·全国·课后作业 查看更多[4]
(已下线)9.2.1 向量的加减法苏教版(2019)必修第二册课本习题 习题9.2(1)(已下线)6.2.2 向量的减法运算-高频考点通关与解题策略(人教A版2019必修第二册)(已下线)6.2.2?向量的减法运算——课后作业(基础版)
更新时间:2021-11-12 10:10:22
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相似题推荐
解答题-证明题
|
较易
(0.85)
【推荐1】如图所示,
是
内一点,且满足
,设
为
延长线与
的交点,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6d6a6dcb41071893e7814843a51f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490587bfbba59f164581324456749e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6d6a6dcb41071893e7814843a51f24.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/14/f060b2a0-ad97-49a7-8901-1730e11f44ac.png?resizew=162)
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解答题-问答题
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【推荐2】在平行四边形
中,
.
(1)用
表示
;
(2)若
,求
;
(3)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43226a02c16de9d5e86abb6f1cba513.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd19d458d51304d5b5709003af66e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29454d836c3b90c0cd251c4535e124b5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5208d2cfd4e2857fb4b5f9c4e57c8335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec6fb9e0625b85be3103d317fbb0cca.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddfb14ceb3cfad50efcda194c4f9c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7173b357dec0dca7d6da123345089741.png)
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解答题-作图题
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解题方法
【推荐2】如图,已知向量
和向量
,用三角形法则作出
-
+
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45ea1d522a3ebbf5f5d8d330fdbd1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b549e16842d85432dfb178dc0de58e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45ea1d522a3ebbf5f5d8d330fdbd1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b549e16842d85432dfb178dc0de58e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45ea1d522a3ebbf5f5d8d330fdbd1e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/26b59dbd-b9f0-481f-9c01-8281b9bced1e.png?resizew=223)
您最近一年使用:0次