Jika sin x = p maka cos (180' - x ) = ?
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Pertanyaan
Jika sin x = p maka cos (180' - x ) = ?
1 Jawaban
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1. Jawaban Cynthiaaaa
sin = depan / miring
depan = p miring = 1 samping = √1-p²
cos(180-x) = cos x = samping / miring = √1-p²