Respostas

2014-06-27T15:19:40-03:00
Loga B = c --> a^c = B

portanto:

log9 27 = x

9^x = 27
9^x = 3^3
(3^2)^x = 3^3
3^2x = 3^3

=> 2x = 3
x = 3/2