Question

dados log5 7= 1,21 log5 2=0,43 (base5), calcule
log5 3,5
log5 56

Answer 1

a)$\log_53,5$
$\log_5 \frac{35}{10}$
$\log_5 \frac{7}{2}$
$\log_57-\log_52$
$1,21-0,43=0,78$

b)$\log_556$
$\log_57.8$
$\log_57+\log_58$
$\log_57+\log_5 2^{3}$
$\log_57+3.\log_52$
$1,21+3.(0,43)=1,21+1,29=2,5$