Sin x ( Tan x + cotan x) =
Matematika
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Pertanyaan
Sin x ( Tan x + cotan x) =
1 Jawaban
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1. Jawaban Anonyme
Kelas 10 Matematika
Bab Trigonometri
sin x (tan x + cotan x)
= sin x . (sin x/cos x + cos x/sin x)
= sin x . (sin² x + cos² x)/(sin x . cos x)
= sin x . 1/(sin x . cos x)
= 1/cos x
= sec x