名校
1 . 已知点P是△ABC所在平面内的一点,边AB的中点为D,若
,其中
,则点P一定在( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0655a60a61aa90f1e91e694d9b9746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
A.AB边所在的直线上 | B.BC边所在的直线上 |
C.AC边所在的直线上 | D.△ABC的内部 |
您最近一年使用:0次
2016-01-20更新
|
1150次组卷
|
3卷引用:人教A版(2019) 必修第二册 逆袭之路 第六章 平面向量及其应用 整合提升
2014·全国·一模
2 . 设平面向量
=(1,2),
=(﹣2,y),若
∥
,则|2
﹣
|等于( )
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/77e58cd412b643b18230e93ea4cfee7a.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/9e6a8123509943c8a4662224d408fa1d.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/77e58cd412b643b18230e93ea4cfee7a.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/9e6a8123509943c8a4662224d408fa1d.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/5a107b328d4b4b81a139314ab0d6d931.png)
![](https://img.xkw.com/dksih/QBM/2014/5/15/1571723251007488/1571723256455168/STEM/674ddb70c445497997995e37bdc271a0.png)
A.4 | B.5 | C.![]() | D.![]() |
您最近一年使用:0次
10-11高三·江西·阶段练习
3 . 已知
,
是不共线的向量,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76677f5a19497b24d1cc135cc41906a.png)
,则
共线的充要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76677f5a19497b24d1cc135cc41906a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69fbdf97dadf8865375ecda3e7b5e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 若
,
,
是空间任意三个向量,
,下列关系式中,不成立的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696bf63a3a726968a19b8927be5a2112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0928087301c0628fba2a9cd3af14f34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59681c3a9270b224760581c2998a5115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab23f302cc0796172080fb4d1736fe9b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2011-03-22更新
|
1114次组卷
|
4卷引用:2011山西省忻州市高二上学期联考数学理卷B
(已下线)2011山西省忻州市高二上学期联考数学理卷B安徽省北大附属宿州实验学校2018-2019学年高二上学期期末数学(理)试题(已下线)专题9.1 向量概念(基础练)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第二册)山东省济宁市汶上县第一中学2022-2023学年高二上学期第一次模块检测数学试题