Sin 30 + sin 150 + cos 330
Matematika
allanyanwar
Pertanyaan
Sin 30 + sin 150 + cos 330
1 Jawaban
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1. Jawaban Anonyme
sin 30° + sin 150° + cos 330°
= sin 30° + sin 30° + cos 30°
= 1/2 + 1/2 + 1/2 √3
= 1 + 1/2 √3
= 1/2 (2 + √3)