Question

If the angle between vector A and vector B is Π/3, what is the angle between vector 2A and vector -3B?​

Answer 1

Answer:

2pi/3

Explanation:

The magnitude of the vectors makes no difference in angles. Hence the only thing making a difference is the negative B. If initial angle was 60° then the angle when B was flipped will be the linear pair of 60. That is, 180 - 60, 120° which is 2pi/3.