若向量
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae1a480f043297112ecf98c804aab01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce98807d3908499f8b98f9043aba9d37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d670916edeedb9ede4ac9c07d95c101.png)
A.5 | B.11 | C.16 | D.18 |
更新时间:2022-01-02 17:23:53
|
相似题推荐
单选题
|
较易
(0.85)
解题方法
【推荐1】已知向量
满足向量
在向量
上的投影向量为
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb2bb1a8f3e7570fb9ec6342564cfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f931392a7cb9bc8b2afa04c75e124376.png)
A.![]() | B.1 | C.![]() | D.2 |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】在
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93be58802e0b918b7f2e85875c265902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a9d11c1fdda8f3bb2ef921bc75f816.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐3】已知
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a984f5b91e724fc642618f7f645b29af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d4d16ca94ba809d7205b60b03666c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b813d0d57082e5bb4f11fb296e0fa94f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】已知向量
,
,且
,
是与
同向的单位向量,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4850f6d20b6bf120025e85366cfb874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee9311cc9d34662becd03903d3b400a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44debd1a82e235d29f93e395808b4854.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次