Respostas

2013-11-05T17:18:06-02:00
Log 5 = log (60/12) = log (3x2x10)/log (3x2x2) = (log 3+log2+log10) / (log 3 + log 2+ log 2) = (b+a+1) / (b+a+a) = (a+b+1) / 2a+b
1 5 1