Penjelasan dengan langkah-langkah:
5. x = r × cos ɑ
x = 8 × cos 60°
x = 8 × 1/2
x = 4
y = r × sin ɑ
y = 8 × sin 60°
y = 8 × 1/2 √3
y = 4√3
Koordinat kartesius (4, 4√3)
6. tan 315°
= tan (360 - 45)°
= tan(-45)°
= -1
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Penjelasan dengan langkah-langkah:
5. x = r × cos ɑ
x = 8 × cos 60°
x = 8 × 1/2
x = 4
y = r × sin ɑ
y = 8 × sin 60°
y = 8 × 1/2 √3
y = 4√3
Koordinat kartesius (4, 4√3)
6. tan 315°
= tan (360 - 45)°
= tan(-45)°
= -1