Respostas

2013-03-21T14:32:21-03:00

log5 = log (10/2) = log 10 - log 2 

log 5/2 = log 5 - log 2

log 5/2 = log10/2 - log 2
log 5/2 = log 10 - log2 - log 2
log 5/2 = 1 - 0,3 - 0,3
log 5/2 = 1 - 0,6
log 5/2 = 0,4

2 1 2
2013-03-21T15:13:00-03:00

log5=log(10/2)

log5=log10-log2

log5=1-0,3

log5=0,7

1 5 1