Respostas

A melhor resposta!
2013-10-08T11:37:44-03:00
(6+5i)+(3-4i)=0
6+5i+3+4i=0
6+3+5i+4i=0
9+9i=0
9i=-9
i= -9
     9
i=-1 

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2013-10-08T11:38:18-03:00