Question

considerando log 2 = 0,30 e log 3 = 0,48 , calcule o valor de :

Log 18.000 


Com urgência !!! 

Answer 1

 Olá xará,

$\log18000=\\\\\log(2\cdot3^2\cdot10^3)=\\\\\log2+\log3^2+\log10^3=\\\\\log2+2\cdot\log3+3=\\\\0,30+2\cdot0,48+3=\\\\\boxed{4,26}$

Answer 2

$\boxed{log \ 18000 = log \ (18*1000) = log \ (18*10^3)}$

$\boxed{log \ (18*10^3) = log (2*3^2*10^3) = log \ 2 + log \ 3^2 + log \ 10^3}$

$\boxed{log \ 2 + log \ 3^2 + log \ 10^3 = log \ 2 + 2*log \ 3 + 3* log \ 10 \to}$

$\boxed{\boxed{ 0,3+0,96+3 = 4,26}}$

Espero ter ajudado. :))