Respostas

2014-01-30T15:23:27-02:00
 log √3 81  = x
Log3^1/2 (81) = x
2log 3 (81) = x
2 . (81 = 3^x)
2 . (3^4 = 3^x)
2 . (4 = x)
2 . 4
8
1 3 1