​ \({\frac{{\; 4 }}{{\sqrt {7} + \sqrt{5}}}}\).+ \({\frac{{\; \sqrt7 + \sqrt5 }}{{4}}}\) యొక్క విలువెంత?

1
\({\frac{{\; 9√7 + 7√5 }}{{2}}}\)
2
\({\frac{{\; 9√7 - 7√5 }}{{2}}}\)
3
\({\frac{{\; 9√7 + 7√5 }}{{4}}}\)
4
\({\frac{{\; 9√7 - 7√5 }}{{4}}}\)

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