Question

Dados log a = 5, log b = 3 e log c = 2, calcule: (1,2 pto)

Log (a.b² / c)​

Answer 1

$\log(\frac{a\cdot b^2}{c})=$

$\log(a\cdot b^2)-\log c=$

$\log a+\log b^2-\log c=$

$\log a+2\log b-\log c=$

$5+2\cdot 3-2=$

$5+6-2=$

$9$