2006-07-27 15:08:35 · 6 answers · asked by ToppDawg 2 in Science & Mathematics ➔ Mathematics
(2sinx - 1)(cosx + 1) = 0
2sinx - 1 = 0
2sinx = 1
sinx = (1/2)
x = 30° or 150°
cosx + 1 = 0
cosx = -1
x = 180
x = 30°, 150°, or 180°
2006-07-27 15:17:34 · answer #1 · answered by Sherman81 6 · 2⤊ 0⤋
sin x = 1/2 (which happens at 30 or 150 degrees)
or
cos x = -1 which happens at 180 degrees
2006-07-27 22:18:43 · answer #2 · answered by hayharbr 7 · 0⤊ 0⤋
x = 180
x = 30, 150
2006-07-27 22:17:42 · answer #3 · answered by be_ez_2004 2 · 0⤊ 0⤋
sin x =1/2
cos x = -1
x=150
2006-07-27 23:42:58 · answer #4 · answered by sanjeewa 4 · 0⤊ 0⤋
I could but Im on vacations... it's some sort of equation... that's all my brain wants to write :)
2006-07-27 22:12:59 · answer #5 · answered by Life is short: Enjoy it!!! 3 · 0⤊ 0⤋
Do your own homework
2006-07-27 22:11:43 · answer #6 · answered by Anonymous · 0⤊ 0⤋