Question

Dados log 2=0,30, log 3=0,48 e log 5=0,70, calcule:
log 20

Answer 1

Log20 = Log 2². Log 5
Log20 = 2.Log 2 + Log 5
Log20 = 2.0,3 + 0,7
Log20 = 0,6 + 0,7 = 1,3