Question

Calculați media geometrică a numerelor: radical din 6 - 2 si radical din 6 + 2

Answer 1

 

$\displaystyle\bf\\m_g=\sqrt{\Big(\sqrt{6}-2\Big)\Big(\sqrt{6}+2\Big)}\\\\\\m_g=\sqrt{\Big(\sqrt{6}\Big)^2-2^2}\\\\\\m_g=\sqrt{6-4}\\\\\boxed{\bf~m_g=\sqrt{2}}$

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Answer 2

mg=rad(a×b)

mg=rad(6-2)×(6+2)

mg=rad(6-4)

mg=rad2