Question

sabendo que log 2= 0,30103 e log 3=0,47712, calcule 20​

Answer 1

Resposta:

Explicação passo-a-passo:

log 20 =x

x=log 20 = log 5*4= log 5 +log 4

x=log 4 +log 5

x=log 4 + log (10/2)

x= log 2² + (log 10 - log 2

x= 2log 2 + log 10 -log 2

x= 2log 2 -log 2 +log 10

x= log 2 + log 10

x= 0,3010 +1

x=1,3010