Question

Dados log2= 0,3 e log3=0,5 , calcule :
a) log48
b) log81?

Answer 1

log48= log(6.8) =log6  +log8  =log(2.3) +log2³=log2 +log3 +3.log2
0,3 +0,5 +3.0,3 =1,7
log81 =  log3^4 =4.log3= 4.0,5 =2