Question

dados log2=030, log3=0,48 quanto vale: log 500 e log 18

Answer 1

log 500 = log (5x100) = log5 + log100 = log(10/2) + log 100 = log10 - log2 + log 100 = 1 - 0,30 + 2 = 3 - 0,30 = 2,70

log 18 = log (3² x 2) = log 3² + log 2 = 2.log 3 + log 2 = 2 . 0,48 + 0,30 = 
0,96 + 0,30 = 1,26