mohon bantuannya dengan cara terimakasih

x = r cos 150 = 10 cos 150 = 10 * -0.5 √3 = -5√3
y = r sin 150 = 10 sin 150 = 10 * 0.5 = 5

koordinat kartesius (-5√3,5)

A(10, 150°) => r = 10 dan a = 150°
x = r cos a = 10 cos 150° = 10 . -cos 30° = 10 . -1/2 √3 = -5√3
y = r sin a = 10 sin 150° = 10 . sin 30° = 10 . 1/2 = 5
Koordinat cartesius = (x, y) = (-5√3, 5)