trigonometri sinx/1-cos x =
Matematika
alda27
Pertanyaan
trigonometri sinx/1-cos x =
1 Jawaban
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1. Jawaban rinarizles
sinx ÷ 1- cosx = sin x ÷ 1- cos x × 1+ cos x
= sin x ÷ 1- cos²x
= sin x ÷ sin²x
= 1 ÷ sin x