bila 0° < x < 360°, maka nilai x yang memenuhi sin x° = 1/2 √3 adalah . . . .

Sin x = 1/2√3
Sin x = Sin 60°

X1 = 60°+k.360°

X2 = (180°-60°)+k.360°
X2 = 120°+k.360°


*k = 0
X1 = 60°+0.360° = 60°

X2 = 120°+0.360° = 120°

*k = 1
X1 = 60°+1.360° = 420°

X2 = 120°+k.360° = 480°

Hp = {60°,120°}