已知向量
,若
,则实数m的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa54ad85bd0507e4972712d9d634d23a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054564a4676169f7ebcda46b267ca596.png)
A.![]() | B.﹣4 | C.4 | D.![]() |
更新时间:2020-04-09 07:36:46
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【知识点】 已知向量共线(平行)求参数解读
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单选题
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较易
(0.85)
名校
解题方法
【推荐1】已知向量
,
不共线,且
,
,若
与
共线,则实数
的值为( )
![](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/dedee52306b3ccd6233c4dd9fa94de41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab49040d695d597e231f264f67cfda5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337ab4dc61186ca58bb0605cb6d02df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.2 | B.![]() | C.2或![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知向量
,
,
,且
,则向量
在向量
方向上的投影为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5412e604d67ddbb5cab4f3f81a0f3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b9a806f034bce0808841277e724cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cef040bc5048aa9677806d9522466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a254b4db699bfe1d8b551d2e943276e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次