Question

log 2=2 e log 5=30 calcule o valor de log 100

Answer 1

Log 100 = log 50 . 2 = log de 5 . ( 10) . 2 =
log ( 5 . ( 5 . 2) . 2 ) =
Log 5 . 5 . 2 . 2= Utilizar a propriedade...
log 100 = log 5 + log 5 + log 2 + log 2
Log 100 = 30 + 30 + 20 + 20
Log 100 = 100
Espero ter ajudado. 

Answer 2

Ola 

logx(2) = 20
logx(5) = 30 

100 = 2*2*5*5 

logx(100) = logx(2) + logx(2) + logx(5) + logx(5)
logx(100) = 20 + 20 + 30 + 30 = 100