[tex]\it m_g=\sqrt{a\cdot b},\ \ a,b \geq0\\ \\ m_g=\sqrt{2\sqrt6\cdot3\sqrt6}=\sqrt{6\cdot6}=\sqrt{36}=6[/tex]
Observație:
[tex]\it \sqrt6\cdot\sqrt6 =6[/tex]
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[tex]\it 0,12=\dfrac{\ 12^{(4}}{100}=\dfrac{3}{25}\\ \\ \\ 0,(3)=\dfrac{\ 3^{(3}}{9}=\dfrac{1}{3}\\ \\ \\ m_g=\sqrt{\dfrac{\not3}{25}\cdot\dfrac{1}{\not3}}=\sqrt{\dfrac{1}{25}}=\dfrac{1}{5}=0,2[/tex]
