Question

Dados: log2 = 0,30 log3 = 0,48 e log 5 = 0,70. Calcular log 144

Answer 1

log 2 . 2 . 2 . 2 . 3 . 3   = log 144
log 2 + log 2 + log 2 + log 2 + log 3 + log 3 = 
4 log 2 + 2 log 3 = 
4 . 0,30 + 2 . 0,48 = 
   1,20 + 0,96 = 2,16
então log 144 = 2,16

Answer 2

Oi Lucidriano

log(2) = 0.30, log(3) = 0.48 

144 = 16*9 = 2^4*3^2

log(144) = 4log(2) + 2log(3) = 4*0.30 + 2*0.48 = 2.16