Question

Dados log a=5 e log c= 2 calcule: a) log( a/c) b) log (a.c)

Answer 1

log a=5 e log c= 2

a) log( a/c) = log a - log c  ==> 5-3 ==> 2

b) log (a.c) =  log a + log c  ==> 5+3 ==> 8