Resposta :

[tex]\text{log}_{\text{a}}\text{b}=\text{x}\Rightarrow\text{a}^{\text{x}}=\text{b}[/tex]

 

[tex]\text{log}_{\text{a}}\text{b}=\text{x}\Rightarrow\text{anti}~\text{log}_{\text{a}}\text{x}[/tex]

 

[tex]\text{co}~\text{log}_{\text{a}}\text{b}=-\text{log}_{\text{a}}\text{b}=\text{log}_{\text{a}}\frac{1}{\text{b}}[/tex]

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