18=6sin(x-80)+12
18 = 6sin(x-80) + 12. I -12
6 = 6sin(x-80) I /6
1 = sin(x-80). I. arcsin
arcsin(1) = x-80. I +80
arcsin(1)+ 80 = x
170 = x
arcsin= sin^(-1)
18=6sin(x - 80)+12
18 = 6sin(x - 80) + 12. I -12
6 = 6sin(x - 80) I /6
1 = sin(x - 80). I arcsin
arcsin(1) = x - 80
90 = x - 80 I +80
170° = x
