在空间直角坐标系中,
,
,
,若
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eb36e2b69cee6ff894dd3e29c1fea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efe3dfede3ca840b3c2f634c6881355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407cea205c837b24f568fe15ffa25281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d49580c62441b3f9cb7e9d58c1561e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.3 | B.![]() | C.![]() | D.![]() |
21-22高二下·江苏南京·期中 查看更多[2]
更新时间:2022-04-22 16:25:33
|
【知识点】 空间向量垂直的坐标表示
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐1】两平面
的法向量分别为
,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c370084743ca386073a669910fbeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fdafbca8171557298412284693b812.png)
A.-3 | B.6 |
C.-6 | D.-12 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知向量
,
,
则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69726803140c31d955fde7c2527b522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea93e4c942e3ddfa5bb315cb6531d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3ab6ed6d72434df1a67e2e58c00065.png)
A.![]() ![]() ![]() ![]() | B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() | D.以上都不对 |
您最近一年使用:0次