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Mg a nr a=(√2-1)*(√5+1) si b=(√2+1)*(√5-1)

Răspuns :

[tex]a=( \sqrt{2}-1)( \sqrt{5}+1 ) \\ b=( \sqrt{2}+1)( \sqrt{5}-1 ) \\ m_g= \sqrt{a*b} \\ m_g= \sqrt{( \sqrt{2}-1)( \sqrt{5}+1 )( \sqrt{2}+1)( \sqrt{5}-1 )} \\ m_g= \sqrt{(2-1)(5-1)} \\ m_g= \sqrt{4} \\ \boxed{m_g=2} [/tex]