Question

dados log2=0,30,log3=0,48 e log5=0,70 determine log de 18

Answer 1

log 18 =

log (2 . 3²) =

log 2 + log 3² =

log 2 + 2.log 3 =

0,30 + 2 . 0,48 =

0,30 + 0,96 =

1,26