cos 180° sin 120° ul=
Matematika
tya471
Pertanyaan
cos 180° sin 120° ul=
1 Jawaban
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1. Jawaban Anonyme
TriGonoMetRi
• sudut istimewa
cos 180° sin 120°
= -1 . sin (180° - 120°)
= - sin 60°
= -1/2 √3