已知直线
和
互相垂直,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da58738eab04e1cb36f6e81da15a5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8241b73f686a9c5d090a2b52cdf11d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.3 | B.4 | C.5 | D.6 |
更新时间:2024-01-28 11:40:45
|
【知识点】 已知直线垂直求参数
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解题方法
【推荐1】已知直线l的倾斜角为
,直线
经过点
,
,且
与l垂直,直线
:
与直线
平行,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b199d124fb9a5bc8438c9884f04534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ceec39aaaccbeaac9a4a5bdbb0f0e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab4bc9acfa1ff7062dc349a08a3f003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/820348c8fdfa692d8e29e286b2d5e1fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
A.![]() | B.![]() | C.0 | D.2 |
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【推荐2】若直线经过点
和圆C:
的圆心,并且与直线
垂直,则m的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739574dc63edf374b2f2fe0e80dbaa7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754b2d0f98fbcd1f7be049cd6232391b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b5431b5b61203a21457bd87b10b1c1.png)
A.-4 | B.4 | C.-1 | D.1 |
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