若已知点A(1,1,1), B(-3,-3,-3)则线段AB的长为( )
A.2![]() | B.4![]() | C.4![]() | D.3![]() |
更新时间:2020-05-27 10:43:43
|
【知识点】 求空间中两点间的距离
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐1】已知空间直角坐标系
中的
点关于
轴的对称点为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0f8dd06f5a093c3d7d427ea87ea51b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
A.![]() | B.4 | C.6 | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】空间内有三点
,
,
,则点
到
的中点
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e67f373e6b207158aad902829e2b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9548e1efe7c79d683b479975b8cc038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34b0240a599afb4955a2bc26b4bd2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次