Video solusi : Untuk 0 <= x <= 360 , himpunan penyelesaian dari pertidaksamaan cos 2 x-sin x-1 >= 0 adalah...
A. {x | 0 <= x <= 180} dan {x | 210 <= x <= 330}
B. {x | 0 <= x <= 180} dan {x | 330 <= x <= 360}
C. {x | 180 <= x <= 210} dan {x | 210 <= x <= 330}
D. {x | 180 <= x <= 210} dan {x | 330 <= x <= 360}
E .{x | 210 <= x <= 330} dan {x | 330 <= x <= 360}