Question

Calculeaza media geometrica a urmatoarelor numere: a) 6/5 si 8/15 b)4/21 si 7/3 ​

Answer 1

Răspuns:

a) $\frac{4}{5}$

b)  $\frac{2}{3}$

Explicație pas cu pas:

a)

$m.g = \sqrt{\frac{6}{5} *\frac{8}{15} } = \sqrt{\frac{48}{75} } = \sqrt{\frac{16*3}{25*3} } = \frac{4}{5}$

b)

$m.g = \sqrt{\frac{4}{21}*\frac{7}{3} } = \sqrt{\frac{28}{63} } = \sqrt{\frac{4}{9} } = \frac{2}{3}$