已知直线
与直线
垂直,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04eed461026f69fe9ab2c5dc12af8ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ea4c63c6488feef8bd6fc89a8cbd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-04-06 17:33:16
|
【知识点】 已知直线垂直求参数
相似题推荐
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】直线
与直线
垂直,垂足为
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f752458b5870d09a72b7d9d19dec3b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9385be89a5c743f8186e56548702872a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad56ead52ab604e691ac22cc0fd6c25b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() | B.![]() | C.10 | D.8 |
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
,两直线
,
且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a322d65e94c6c1372ba55cb1090c9198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee8a7ca1b661b3f786f118568233250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57f879f6e8df7d5fb261328806260b3.png)
A.2 | B.4 | C.![]() | D.8 |
您最近一年使用:0次