Question

Log de base 39 e logaritmo42 equivale.
A)Log 39. Log 42
B)log 42/log 38
C)log 42 39
D)log39/log42

Answer 1

log(base 39) 42 = 

log 42/log 39

Lembre-se:

log(a)b =  log (c) b/log (c) a