1. Which of the following is the solution to the equation below? 2 sin²x-1=0 O x = 45+ 360k Ox=45+ 360k, x = 135 + 360k, x = 225 + 360k Ox=45+ 360k, x = 135 + 360k, x = 225+ 360k, x = 315 + 360k Ox=4