sin x cos x - cos x = 0
Matematika
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Pertanyaan
sin x cos x - cos x = 0
1 Jawaban
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1. Jawaban Robinn
sinx cosx - cosx = 0
cosx (sinx - 1) = 0
(cosx - 0)(sinx - 1) = 0
cosx = 0
x = 90
sinx - 1 = 0
sinx = 1
x = 90
Hp = { x | x = 90˚ }