Given that OA = 2i + 3j and OB = 3i - 2j. Find the magnitude of AB

Answer 1

I guess O is the origin and you want the vector from point A to point B
well from A to B in the x direction is 3 - 2 = 1
and from A to B in the y direction is -2 -3 = -5
so
sqrt (1^1 + 5^2) = sqrt 26