Question

Ubahlah kedalam bentuk koordinat kartesius (4, 330`)

Answer 1

R = 4, a = 330°
x = r cos a = 4 cos 330° = 4 (1/2)√3 = 2√3
y = r sin a = 4 sin 330° = 4 (-1/2) = -2
jd koordinat cartesiusnya (x, y) = (2√3, -2)