Question

If (x ^ 2 - y ^ 2)/(x ^ 2 + y ^ 2) + (x ^ 2 + y ^ 2)/(x ^ 2 - y ^ 2) = sqrt(2) , then (x ^ 8 - y ^ 8)/(x ^ 8 + y ^ 8) =​

Answer 1

Answer:

Given,

$\\ \frac{ {x}^{2} - {y}^{2} }{ {x}^{2} + {y}^{2} } + \frac{ {x}^{2} + {y}^{2} }{ {x}^{2} - {y}^{2} } = \sqrt{2}$

If you won't get the answer, then you can substitute any values of x and y that satisfy the 1st equation. Then you get the answer.