Respostas

2013-12-12T14:49:40-02:00
(9+3i)+(7-2i)=
9+7+3i-2i=
16+i
1 5 1
2013-12-12T14:55:03-02:00
(9+3i)+(7-2i)
9+3i+7-2i= 
16-1i