Find all solutions of the equation in the interval (0, 2pi)
4 sin x-1=0
solution set????
4sin x - 1 = 0
4 sin x = 1 divide both sides by 4
sin x = 1/4
Using the sine inverse to find x
arcsin (1/4) = x ≈ .253 rads (1st quadrant angle)
Also x is a second quadrant angle
x = pi - .253 ≈ 2.89 rads
+318 
