2√2 sin (3x-60) -1 =1

[tex]2 \sqrt{2} \sin(3x - 60) - 1 = 1 \\ 2 \sqrt{2} \sin(3x - 60) = 2 \\ \sin(3x - 60) = \frac{1}{2} \sqrt{2} \\ \sin(3x - 60) = \sin(45) \\ 3x - 60 = 45 \\ 3x = 105 \\ x = 35 \\ atau \\ \sin(3x - 60) = \sin(135) \\ 3x - 60 = 135 \\ 3x = 195 \\ x = 65[/tex]