Question

Efetue: (1/3 + i) . (1/2 - 2i)

Answer 1

1/3 . 1/2 - 2i/3 + i/2  - 2i² =     ---- (i²=-1)

1/6 - 2i/3 + i/2 +2 =               ---- (MMC = 6)

(1-4i+3i+12)/6 = 

(13-i)/6