Question

Qual a media aritimetica e harmonica de 3,5,10 ? 

Answer 1

$m_A=\frac{3+5+10}{3}=6 \\ \\ m_H=\frac{\frac{1}{3}+\frac{1}{5}+\frac{1}{10}}{3}=\frac{\frac{19}{3}}{3}=\frac{19}{3}.\frac{1}{3}=\frac{19}{9} \approx 2,11$