Question

Considerando que log 2=0,3010 e log 3=0,4771,calcule:
log 125

Answer 1

log(125)= log(1000/8) = log(1000)- log(8) = 3 - log(2³) = 3 - 3.log(2) = 3 - 3.(0,3010) = 

3 - 0,903 = 2,097