Question

Sabendo que log a=2 e log b=-1, calcule o valor de:
A) log (a.b)
B) log (a/b)
C) log√b a

Answer 1

Assunto: Logaritmos.

• sendo:

 log(a) = 2

 log(b) = -1

• A) log (a.b) = log(a) + log(b) = 2 - 1 = 1

• B) log (a/b)  = log(a) - log(b) = 2 - (-1) = 3

• C) log(√b.a) = log(a) + log(b)/2 = 2 - 1/2 = 3/2