Ada yang tau cara mengerjakan ini?
1.Sin 2x- akar 2 sin x=0
2.1+sin 2x =0
3.Second 3x - akar 2 =0
4.3 sec x +2 akar 3 =0
1.Sin 2x- akar 2 sin x=0
2.1+sin 2x =0
3.Second 3x - akar 2 =0
4.3 sec x +2 akar 3 =0
enda
No. 2 1+ sin 2x = sin 2x = -1 sin x = -1/2
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