Cos 2x + 1 = 0 , 0° ≤ x ≤ 2π
Matematika
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Pertanyaan
Cos 2x + 1 = 0 , 0° ≤ x ≤ 2π
1 Jawaban
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1. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
cos 2x + 1 = 0
cos² x - 1 = -1
cos² x = 1 - 1
cos x = 0
x = π/2
HP = { π/2 }