4sin(x)−4=0 solve for x
First let's isolate the sin(x) term4sin(x) - 4 = 04sin(x) = 4sin(x) = 1Now use the unit circle and you'll see that the only solution in the interval [0,2pi) is x = pi/2If you want to ignore the restriction and consider all solutions, then x = (pi/2) + 2pi*n where n is any integer