Jawabanmu

2014-04-27T18:32:29+07:00
2 sin 2x = akar3
maka sin 2x = akar (3 )/2

sehingga sin 2x = sin 60

2014-04-27T18:34:05+07:00
2 sin 2x = akar 3 sin 2x = 1/2 akar 3 sin x = sin 60 = sin 120 x = 60 dan x = 120