Question

A(2,3) B(5, -1) aflați coordonatele vectorului AB​

Answer 1

$\vec{AB}=(x_B-x_A)\vec{i}+(y_B-y_A)\vec{j}\\\\\vec{AB}=(5-2)\vec{i}+(-1-3)\vec{j}\\\\\vec{AB}=3\vec{i}-4\vec{j}$