Respostas

2014-08-12T21:22:57-03:00
 z=(1+3i)(2/i-1) >>> z=(1+3i)(-1+2/i) >>z=(-1 +2/i-3i +6i/i) 

z=(-1 +2/i-3i+6) >>z=5 +5/i >>> m^2=25+25 >>m^2=50 >>. m=v50 >>m=5v2