Question

Exercitiul 13 va rog...

Answer 1

Aplicam inegalitatea ma > mg pentru fiecare radical:

$\frac{1,9+2,1}{2}\ \textgreater \ \sqrt{1,9*2,1} \rightarrow2\ \textgreater \ \sqrt{1,9*2,1}$
$\frac{2,8+3,2}{2}\ \textgreater \ \sqrt{2,8*3,2}\rightarrow 3\ \textgreater \ \sqrt{2,8*3,2}$
$\frac{3,7+4,3}{2}\ \textgreater \ \sqrt{3,7*4,3}\rightarrow4\ \textgreater \ \sqrt{3,7*4,3}$

Daca adunam cele trei relatii vom obtine relatia din enunt.