tolong yaaaaa pls sin 3° = 3x maka nilai sin 84° = .....?
Matematika
mutia981125
Pertanyaan
tolong yaaaaa pls
sin 3° = 3x maka nilai sin 84° = .....?
sin 3° = 3x maka nilai sin 84° = .....?
1 Jawaban
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1. Jawaban Anonyme
jawab
sin 84 = sin (90 - 6) = cos 6
sin 84 = cos 2(3°)= 1- 2 sin² (3) = 1 - 2(3x)² = 1- 36x²