Tolong mau di kumpul besok

Penjelasan dengan langkah-langkah:

– Sin 150 = Sin (180° – 30°)

= Sin 30°

= 1/2

Cos 150 = Cos (180° – 30°)

= -Cos 30

= – 1/2√3

Tan = Tan (180° – 30°)

= – Tan 30

= – 1/3√3

– Sin 180° = (270° – 90°)

= Cos 90

= 0

Cos 180° = (270° – 90°)

= Sin 90

= 1

Tan 180° = (270° – 90°)

= Cotan 90°

= 0

– Sin 210 = (270° – 60°)

= – Cos 60

= – 1/2

– Cos 210 = (270° – 60°)

= – Sin 60

= – 1/2√3

– Tan 210 (270° – 60°)

= Cotan 60°

= 1√3

– Sin 240 = (270° – 30°)

= – Cos 30

= – 1/2√3

Cos 240 = (270° – 30°)

= -Sin 30

= – 1/2

Tan 240 = (270° – 30°)

= Cotan 30

= √3

– Sin 270° = (360° – 90°)

= – Sin 90°

= – 1

Cos 270° = (360° – 90°)

= Cos 90

= 0

Tan 270° = (360° – 90°)

= – Tan 90°

= – ~

– Sin 300° = (360° – 60°)

= -Sin 60

= – 1/2√3

Cos 300° = (360° – 60°)

= Cos 60°

= 1/2

Tan 300° = (360° – 60°)

= -Tan 60

= – √3

– Sin 330° = (360° – 30°)

= – Sin 30

= – 1/2

Cos 330° = (360° – 30°)

= Cos 30°

= 1/2√3

Tan 330° = (360° – 30°)

= – Tan 30°

= – 1/3√3

– Sin 860 = Cos (20 x 40 – 60)°

= Cos 60°

= 1/2