Question

Koordinat kartesius dari (3√2, 120 derajat) adalah

Answer 1

Verified answer

Bab Koordinat Kartesius
Matematika SMA Kelas X

(3√2, 120°)

x = r . cos θ
  = 3√2 . cos 120°
  = 3√2 . (-1/2)
  = - (3/2) √2

y = r . sin θ
  = 3√2 . sin 120°
  = 3√2 . 1/2 √3
  = (3/2) √6

(x, y) = (-3/2 √2, 3/2 √6)