Question

Dados long de 2= 0, 30, log 3=0 , 48 e log 5 = 0, 70 calcule : h ) 1,8

Answer 1

$log1,8=log\frac{9}{5}=log9-log5=log3^2-log5=2.log3-log5=\\\\ =2.0,48-0,7=0,96-0,7=0,26$