Question

sabendo que log 2 = 0,301 e log 5 = 0,698 calcule o log 40

Answer 1

log 40 = log(5*2*2*2) =

log 5 + log 2 + log 2 + log 2 =

log 5 +3log 2 =

0,698 +3*0,301 =

0,698 + 0,903 =

1,601