1) Find all solutions of the equation in the interval [0, 2pi]
4 sin x-2=0
solution set =[????]
4sin(x) - 2 = 0
4sin(x) = 2
sin(x) = 2/4
sin(x) = 1/2
x = sin-1(1/2)
x = pi/6 or pi - pi/6 = 5pi/6
+318 
