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Verified answer
Sin 1860°= sin (5 x 360 + 60)°
= sin 60°
= (1/2) akar3
Verified answer
Sudut Berelasi.sin (360°n + θ) = sin θ
sin 1860° = sin [360°(5) + 60°]
= sin 60°
= √3 / 2