Question

Se log10123 = 2,09, o valor de log101,23 é:

Answer 1

Se
$log10123=2,09$

$log101,23=log \frac{10123}{100} =log10123-log100=2,09-2=0,09$

$log100=x \\ 10^x=100 \\ 10^x=10^2 \\ x=2$