Ubahlah koordinat kutub B(4,120°) dalam koordinat cartecius

By Admin ReiPosted on December 2, 2022

Ubahlah koordinat kutub B(4,120°) dalam koordinat cartecius

$x = r cos( alpha ) \ = 4 cos(120) \ = - 4 cos(60) \ = - 2$
$y = r sin( alpha ) \ = 4 sin(120) \ = 4 sin(60) \ = 2 sqrt{3}$
(-2,2akar3)