sin 1200°
= sin (3 x 360° + 120°)
= sin 120°
= sin (180 - 60)°
= sin 60° ====> kuadran II sin bernilai +
= 1/2 √3
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sin 1200°
= sin (3 x 360° + 120°)
= sin 120°
= sin (180 - 60)°
= sin 60° ====> kuadran II sin bernilai +
= 1/2 √3
Moga membantu...