名校
1 . 在平行四边形ABCD中,
,
,
,则
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fadc9a19de13ca7688ca93f0c70a8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052d7af2f98d95bac8725b608fba0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
您最近一年使用:0次
2021-12-01更新
|
848次组卷
|
4卷引用:河南省南阳市第一中学校2021-2022学年高一下学期第二次月考数学试题
20-21高一·全国·课后作业
名校
2 . 给出下列命题
①向量
的长度与向量
的长度相等;
②向量
与
平行,则
与
的方向相同或相反;
③两个有共同起点并且相等的向量,其终点必相同;
④两个有共同终点的向量,一定是共线向量;
⑤向量
与向量
是共线向量,则点A、B、C、D必在同一条直线上;
⑥有向线段就是向量,向量就是有向线段.
其中假命题的个数为__ .
①向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
②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/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
③两个有共同起点并且相等的向量,其终点必相同;
④两个有共同终点的向量,一定是共线向量;
⑤向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
⑥有向线段就是向量,向量就是有向线段.
其中假命题的个数为
您最近一年使用:0次
20-21高一·全国·课后作业
名校
3 . 给出下列六个命题:
①两个向量相等,则它们的起点相同,终点相同;
②若
,则
;
③若
,则
,
,
,
四点构成平行四边形;
④在平行四边形
中,一定有
;
⑤若
,
,则
;
⑥若向
,
,则
.
其中错误的命题有__ .(填序号)
①两个向量相等,则它们的起点相同,终点相同;
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e9616e55c8107822a14b0c9be94497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778542d99ab19e2ecc0c7ef75161f133.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccecb2c6965297b0357d42e53503bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
④在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ccecb2c6965297b0357d42e53503bf.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1d5c3fa6bb8581b1ed670bfdc92a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721965484a2725d8292749adfcab1fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79561d0cc107113f981b8b30d3de2c1c.png)
⑥若向
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32adec8f55a5d998ec6dd6ae442c149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fde8e39a2679babf24eb124ddda20ef.png)
其中错误的命题有
您最近一年使用:0次
4 . 在平行四边形
中,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c11a4de38103230c63c779fa008ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
您最近一年使用:0次
2017-04-13更新
|
864次组卷
|
3卷引用:河南省新乡市2018届高三第二次模拟测试数学(理)试题