Question

02. Dados log a = 5 e log c = 2, calcule:
a) log(a/c)
b) log(a.c)​

Answer 1

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$\boxed{\begin{array}{c}\sf 02)~Dados~\ell og\,a=5~e~\ell og\,c=2,calcule:\\\sf a)\ell og\left(\dfrac{a}{c}\right)\\\sf b)~\ell og(a\cdot c)\end{array}}\\\underline{\sf soluc_{\!\!,}\tilde ao:}\\\sf a)~\ell og\left(\dfrac{a}{c}\right)=\ell og\,a-\ell og\,c=5-2=3\checkmark\\\sf b)~\ell og(a\cdot c)=\ell og\,a+\ell og\,b=5+2=7\checkmark$