Respostas

2013-11-04T17:21:20-02:00
50= 1,69
45=1,65
não tenho certeza
3 3 3
2013-11-04T17:24:50-02:00
Log50=log5.10= log 5+log10=log5+1

log45=log5.9=log5+log9=log5+2log3
5 4 5