Problem: Report Error Let u and v be vectors of length of 2 with an angle of 60 between them, and consider b and c in the grid below: .7 LT! Calculate the cosine of the angle between b and c when placed tail to tail. Hint(s): What identity tells us the cosine of the angle between two vectors? How can we calculate magnitudes using dot products? Tips GIVE UP VAI Ir Dnennnenfe\