Question

determine o valor log45

Answer 1

$Ola'~~~\mathbb{ADILSON} \\ \\ Seja: \\ ~~~~~~~~~log45 \\ ~~~~~~\underline{resoluc\~ao } \\ \\ log45=log(9,5) \\ log45=log9+log5 \\ \\ log45=2log3+log5~~~--\ \textgreater \ \underbrace{valor~aproximado~de:}_{\boxed{log3=0,48~,log5=0,70}} \\ \\ log45=2(0,48)+0,70 \\ \\ log45=0,96+0,70 \\ \\ \boxed{\boxed{log45=1,66}}\\ \\ =============================== \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Espero~ter~ajudado!! \\ .$