Question

Calculați Media Geometrica a numerelor $a=\sqrt{81} -3\sqrt{3}+ \sqrt{27}$ b=|$2-\sqrt{3}$|+$\frac{1}{2- \sqrt{3} }$. Va rog ajutati ma

Answer 1

Rescriem puțin numerele.

$a=9+3\sqrt{3}-3\sqrt{3}=9. \\ \\ 2>\sqrt{3}\Rightarrow b=2-\sqrt{3}+\frac{2+\sqrt{3}}{(2-\sqrt{3})(2+\sqrt{3})}=2-\sqrt{3}+\frac{2+\sqrt{3}}{4-3}=$
$=2-\sqrt{3}+2+\sqrt{3}=4.$

Acum, media este $m_g=\sqrt{4\cdot 9}=...$