Question

Calcule o Log3 5 sabendo que o Log3 45 = 3,46.

Answer 1

$log_345=log_3(9*5)=log_39+log_35 \\ \\ 2+log_35=3,46 \\ \\ log_35=3,46-2 \\ \\ \boxed{log_35=1,46}$