1.

If \(x = \frac{{\sqrt 2 + 1}}{{\sqrt 2 - 1}}\;\)and \(y = \frac{{\sqrt 2 - 1}}{{\sqrt 2 + 1}}\), then what is the value of x + y?

A. 6
B. √2
C. 3
D. 3√2
Answer» B. √2


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