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Perbandingan Trigonometri Sudut-Sudut Berelasi

Rumus Perbandingan Trigonometri

Sudut pada Kuadran II (180  α)

a) sin (180  α) = y = sin α

1

x
b) cos (180  α) = x =  = cos α
1 1

c) tan (180  α) = x =  x
= tan α
y y

d) cot (180  α) = y =  y
= cot α
-x x

e) sec (180  α) = 1 =  1
= sec α
x x

f) cosec (180  α) = 1 = cosec α
y