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Calculati ; [tex]( \frac{ \sqrt{2}-1 }{ \sqrt{2} } - \frac{ \sqrt{3}+1 }{ \sqrt{3} } + \frac{3 \sqrt{2+}2 \sqrt{3} }{6} )ori \frac{3 \sqrt{7} }{2 \sqrt{5} } [/tex]