[tex]m_a= \frac{a+b}{2} =\ \textgreater \ a+b=2*m_a=\ \textgreater \ a+b=2*8=\ \textgreater \ a+b=16\\\\
m_a= \frac{a+b+c}{3} =\ \textgreater \ m_a= \frac{16+17}{3} =\ \textgreater \ m_a= \frac{33}{3} =\ \textgreater \ m_a=11[/tex]
Da refresh la pagina ca sa iti apara....
