Question Number 217075 by maths_plus last updated on 28/Feb/25
$$ \\ $$Help me please... $\vv{AB}$ and $\vv{CD}$ are two vectors, and $\vv{AB}$ is not the zero vector. Prove that if the vectors $\vv{AB}$ and $\vv{CD}$ are colinear, then there exists a real number \( k \) such that \( \vv{CD} = k \vv{AB} \). (don't use coordinates !)
Commented by maths_plus last updated on 28/Feb/25
$$\mathrm{why}\:\mathrm{they}\:\mathrm{banned}\:\mathrm{this}\:\mathrm{post}\:? \\ $$
Commented by MathematicalUser2357 last updated on 01/Mar/25
$$\mathrm{No},\:\mathrm{someone}\:\mathrm{flagged}\:\mathrm{this}\:\mathrm{post}\:\mathrm{as}\:\mathrm{inappropriate}. \\ $$
Commented by Tinku Tara last updated on 01/Mar/25
This is not inappropriate. This post has no issue.