Question

Calculati media geometrica a numerelor $a= \sqrt{81}-3 \sqrt{3} + \sqrt{27}$ si $b=|2- \sqrt{3} |+ \frac{1}{2- \sqrt{3} }$

Answer 1

a=9-3√3+3√3=9
b=| √4 - √3 | +  2-√3/(2-√3)(2+√3) = -√4+√3 + 2-√3/4-3=-2+√3+2-√3=0

$\sqrt{ab}$ = $\sqrt{9*0}$ = √0 = 0