Question

sabendo que log2=0,30log3=0,48 e log5=0,70 calcule log1,5 - log 30:

Answer 1

log1,5-log30=log3/2-log5.3.2=log3-log2-(log5+log3+log2)=0,48-0,3-(0,7+0,48+0,3)=0,18-1,48=-1,3