已知非零向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
,向量
,若
与
垂直,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd1580be28ee50b3c396a69b5ffeee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55093c4ccc172e7b839fb762cf9ce87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b91254db5ff748150f449c5cdd256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.1 | B.![]() | C.2 | D.![]() |
更新时间:2020-06-21 13:09:33
|
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单选题
|
较易
(0.85)
解题方法
【推荐1】已知向量
,且
,则x=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b06bc661a9cabf1912b0890920d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
A.2 | B.![]() | C.1 | D.0 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐2】与
垂直的单位向量是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a02c7c13ae03dd1fa918b5325cf554.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐3】已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbdff1c18a06f419c34f0c1ef4546f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5e4efc407661df4257f9e787a20670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d8da7ecf18eece296c2e9dbb0f2443.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次