Question

$x = \frac{ \sqrt{2 + 1} }{ \sqrt{2 - 1} } and \: y = \frac{ \sqrt{2 - 1} }{ \sqrt{2 + 1} } \\ find \: the \: value \: of \: {x}^2 + {y}^{2} + xy$
I will mark as Brainliest.....Pls help me answer this....​

Answer 1

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