Question

If a and b are two vectors such that |a+b| = a then find the angle between 2a+b and b

Answer 1

Answer:

Originally Answered: If a and b are two vectors such that |a+b|=|a-b|, what is the angle between a and b? In this case, B has to be a zero vector, or if B is different from zero, the angle between A and B is 90°. So, there is no defined angle between B and A, or it is 90°..................