Sin x ( tan x + cotan x ) = ...
Matematika
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Pertanyaan
Sin x ( tan x + cotan x ) = ...
2 Jawaban
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1. Jawaban rongro99
sin x (tan x + cotan x)
= sin x (tan x + 1/tan x)
= sin x (tan x/tan x)
=sin x . 1
=sin x -
2. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
sin x (tan x + cotan x)
= (sin x . tan x) + (sin x . cotan x)
= (sin x . sin x / cos x) + (sin x . cos x / sin x)
= sin² x / cos x + cos x
= (sin² x + cos² x) / cos x
= 1 / cos x
= sec x