题库网 (tiku.one)

 找回密码
 立即注册

手机扫一扫,访问本页面

开启左侧

VectorsVectors (id: c087ad86e)

[复制链接]
admin 发表于 2024-7-17 14:45:23 | 显示全部楼层 |阅读模式
本题目来源于试卷: VectorsVectors,类别为 IB数学

[填空题]
The line L has equu lisr(++fyu, z nt(8wa/ *v:9ou0zuagk*z nrwj/ly t0tion $\mathbf{r}=\left(\begin{array}{c}4 \\ -1 \\ 0\end{array}\right)+t\left(\begin{array}{c}1 \\ 1 \\ -1\end{array}\right), t \in \mathbb{R}$ .
The point A has coordinates (4,8,-3) . The point B lies on L such that $\overrightarrow{\mathrm{AB}}$ is perpendicular to L .
1. Find $\overrightarrow{\mathrm{OB}}$ .$\left(\begin{array}{l}
a \\
b \\
c
\end{array}\right)$ a =    b =    c =   
2. Find the shortest distance from A to L .   
3. Find the coordinates of the reflection of the point A in the line L . (a,b,c) a =    b =    c =   




参考答案:
空格1: 8空格2: 3空格3: -4空格4: 6.48±2%空格5: 12空格6: -2空格7: -5


本题详细解析:




微信扫一扫,分享更方便

帖子地址: 

回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

GMT+8, 2024-12-26 02:53 , Processed in 0.041936 second(s), 28 queries , Redis On.

搜索
快速回复 返回顶部 返回列表