Mathematics for IGCSE & O level - Vectors (Section 2 - No. 44)
What can you conclude about the vectors AB and CD if AB = CD?
AB and CD are perpendicular.
AB and CD are equal in magnitude and direction.
AB and CD have the same magnitude but opposite directions.
AB and CD are parallel but not necessarily equal.
Объяснение
If AB = CD, the vectors are equal in magnitude and direction.