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Verified answer
Materi : Identitas TrigonometriKelas : XI SMA K.13 REVISI
cos θ * tan θ
= cos θ * sin θ/cos θ
= sin θ
cos x ( csc x + tan x)
= cosx * 1/ sin x + cos x (sin x/ cos x)
= cos x / sin x + sin x
= cot x + sin x
Verified answer
TrigoNometRi•
cos θ × tan θ
= cos θ × sin θ /cos θ
= sin θ
•
cos x (csc x + tan x)
= cos x . csc x + cos x . sin x /cos x
= cos x . 1/sin x + sin x
= cot x + sin x