Nilai sin120°+sin150°\cos330°+Cos240°=
Matematika
Afrohul
Pertanyaan
Nilai sin120°+sin150°\cos330°+Cos240°=
1 Jawaban
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1. Jawaban Eann
sin 120 + sin 150 / cos 330 + cos 240
sin 60 + sin 30 / cos 30 - cos 60
1/2 akar 3 + 1/2 / 1/2 akar 3 - 1/2
{(akar 3) + 1} / 2 / {(akar 3) - 1} / 2 = 1 + akar 3 / -1 + akar 3