tentukan koordinat kartesius dri koordinat kutub (8,1120)

x = r. cos a
x = 8. cos(1120)
x = 8. cos40
x = 8. 0,766 [Kalkulator]
x = 6,128

y = r. sin a
y = 8. sin(1120)
y = 8. sin40
y = 8. 0,642 [Kalkulator]
y = 5,142

(x, y)
(6,128 , 5,142)