Question

Two points A and B in space have the co-ordinates (2,-1,3) and (4,2,5) resp. Find vector AB?

Answer 1

A(2,-1,3)

B(4,2,5)

AB= (4-2)i + (2-(-1))j + (5-3)k

Your answer is

AB=2i + 3j + 2k