This is part of the QCE Specialist Maths course under Unit 3: Mathematical induction, and further vectors, matrices and complex numbers. In this post, we look at Topic 2: Vectors and matrices and reviewing the concepts of vectors from Unit 1. Here we will define, calculate and use the scalar (dot) product and angle of two vectors.
The Dot Product
How to find the dot product
By manipulating the dot product formula we can also find the angle between two vectors.