Cari hasil koordinat kutub B(6,¼π) dalam koorditan kartesius.

jawab

B( 6, 1/4 pi)
r =6
a= 1/4 pi = 45


x = r cos a = 6 cos 45 = 6 (1/2 √2)
x = 3√2

y = r sin a = 6 sin 45 = 6(1/2 √2)
y = 3√2

x,y = (3√2 , 3√2_