Question

dados log a = 5, log b = 3 e log c = 2 calcule log( a.b ao quadradao /c)

Answer 1

$\mathsf{\ell og (a)=5}\\\mathsf{\ell og(b)=3}\\\mathsf{\ell og (c)=2}\\\\\\\mathsf{\ell og\Big(\dfrac{a.(b)^2}{c}\Big)}\\=\\\\\mathsf{\ell og(a)+\ell og(b^2)-\ell og(3)}\\=\\\\\mathsf{5+2.3-2}\\=\\\mathsf{5+6-2=9}$

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