Question

Qual o log de 3,5 quando log 2 = 0,3 e log 7 = 0,84 ??
Pfvvvv me ajudem :'(

Answer 1

$Resolu\c{c}\~ao \to \left\{\begin{array}{ccc}log\ 3,5 = log\ \frac{35}{10} = log\ 35-log\ 10 \\\\log\ 3,5 = log\ 7*5-1\\\\log\ 3,5=log\ 7+log\ 5-1\\\\log\ 3,5 = 0,84+0,69-1\\\\\boxed{\boxed{log\ 3,5 = 0,53 }}\end{array}\right$

Espero ter ajudado. :))