Question

media harmônica entre os números 3,4 e 6

Answer 1

$M_h=\frac{n}{\frac{1}{x_1}+\frac{1}{x_2}+...+\frac{1}{x_n}}\\\\M_h=\frac{1}{\frac{1}{3}+\frac{1}{4}+\frac{1}{6}}\\\\M_h=\frac{1}{\frac{8+6+4}{24}}\\\\M_h=1\div\frac{18}{24}\\\\\boxed{M_h=\frac{4}{3}}$