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TRIGONOMETRI
Relasi Trigonometri di Semua Kuadran
KUADRAN I
KUADRAN IVKUADRAN III
KUADRAN II
xX
y
Y
r
α
• sin(90- α) = sin α= y =(+) r• cos(90- α)= cos α=x =(+) r• tan(90- α)= tan α=y =(+) x
r
X-x
Y
y
α
sin ( 90+α ) = sin α = y = (+) r cos ( 90+α) = cos α = -x = (-) r tan ( 90+ α ) = tan α = y = (-) -x
α
Y
r
X
-y
-x sin(270-α) = sin α = -y = (-) rcos(270-α) = cos α = -x = (-) rtan(270-α) =tan α= -y = (+) -x
α
r-y
Y
Xx
• sin(270+ α) =sin α = -y = (-) r• cos(270+ α) = cos α = x = (+) r• tan(270+ α) = tan α = -y = (-) x
Kesimpulan
0⁰ / 360⁰
90⁰
180⁰
270⁰
Kuadran I
Kuadran III Kuadran IV
Kuadran II
Semua (+)Sin (+)
Tan (+) Cos (+)
Nama kelompok :
Firdausa RahmahIndah Darojatil Hikmah
Luqyana SalsabilaNurul AmriyatiQurrati A’yunUlifa Harisiwi