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Mathematics, 24.10.2021 22:00 mjr2002june

Show that: \bigg(\frac{ \sqrt{7} + i \sqrt{3}  }{\sqrt{7} - i \sqrt{3}   } + {\frac{ \sqrt{7}  - i \sqrt{3} }{ \sqrt{7}  + i \sqrt{3} } } \bigg) \: is \: real    \\
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