Jawabanmu

2014-03-07T13:13:58+07:00
Sin x + cos x = 3 -> sin x = 3-cos x tan x = sinx /cos x = 1 3-cos x / cos x = 1 3-cos x = cos x 3 = 2 cos x cos x = 3/2 sin x = 3-cos x sin x = 3-3/2 sin x = 6/2 -3/2 sin x = 3/2
dari mna sehingga dapat 3-cos x 3= 2 cos x...???????
sin x + cos x = 3 -> sin x = 3-cos x