Question

efetue: (1-i)^3 numeros complexos

Answer 1

 (1-i)^3  =  (1-i)^² (1-i) ==> -2i(1 - i) ==> - 2i + 2i² ==> - 2i +(-2) ==> - 2i - 2


(1-i)^² = 1 - 2i + i² ==> 1 -2i - 1 ==> - 2i