sederhanakan cos 120°.Tan225°.Cosec240° - Cos210°.Sec300°
Matematika
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Pertanyaan
sederhanakan cos 120°.Tan225°.Cosec240° - Cos210°.Sec300°
1 Jawaban
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1. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
cos 120° . tan 225° . cosec 240° - cos 210° . sec 300°
= (-1/2) . 1 . (-2/3 √3) - (- 1/2 √3) . 2
=1/3 √3 + √3
= (4/3) √3