Find all solutions to the equation below for 0≤α≤2π. If there is more than one answer, enter your solutions in a comma-separated list, and be sure to give exact answers without any rounding. 2cos(α)=1

Answer 1

cosa = 1/2

a = Cos^-1 (1/2) or 2π - Cos^-1(1/2) (Recall that cosine is positive in quadrants 1 and 4)

a = π/3 or 5π/3