(1+sin x) (1-sin x)= cos^x
Matematika
icha1921
Pertanyaan
(1+sin x) (1-sin x)= cos^x
1 Jawaban
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1. Jawaban Anonyme
jawab
(1 + sin x )(1- sin x ) = cos² x
1 - sin² x = cos x
cos x = cos x
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