Question

Logb a = 5 e Logb c = 4, encontre o valor de Logb (c.b.a)

Answer 1

a) logb (a.c) =logb a + logb c  

=4+1=5  

b) logb (a/c) = logb a - logb c  

=4-1=3  

c) logb (a.c)² = 2[logb a+logb c]  

=2*5=10