Welcome to A-level Maths Explained! This video project is supported by the Worshipful Company of Actuaries, a Livery Company of the City of London established in 1979 restricted to actuaries. Through ...

Vectors are equal if they have the same magnitude and direction regardless of where they are. Triangle ABC is isosceles. X is the midpoint of AB, Y is the midpoint of BC and Z is the midpoint of AC.