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Rumus Perbandingan Trigonometri
Sudut pada Kuadran IV (360 α)
a) sin (360 α) = sin ( α) = sin α
b) cos (360 α) = cos (α) = cos α
c) tan (360 α) = tan (α) = tan α
d) cot (360 α) = cot (α) = cot α
e) sec (360 α) = sec (α) = sec α
f) cosec (360 α) = cosec ( α) = cosec α