Respostas

2013-12-10T17:49:49-02:00
W = (1/3+i+1/2-2i) + (1/2-2i)-(1/3+i)
1/3+i = 1.(3-i) / (3+i).(3-i) = 3-i / 3²-(-1) = 3-i / 9+1 = 3-i / 10
1/2 - 2i = 1/2 - 4i/2 = (1-4i)/2

W = [(3-i)/10 + (1-4i)/2]
W = [(3-i)/10 + 5(1-4i)/10]
W = [(3-i)/10 + (5-20i)/10]
W = [(3-i+5-20i)/10]
W = (8-21i)/10