If x = √2 + 1 / √2 and y = √2 - 1 / √2 then x² + y² is

CA Foundation · Quantitative Aptitude · PYQS · January 2025
If x = √2 + 1 / √2 and y = √2 - 1 / √2 then x² + y² is
(A) A. 1 / √2
(B) B. √2
(C) C. 5
(D) D. 0

Suggested Answer and Working Notes:

Correct Answer: Option (C)

C. 5

Topics: Part-A: Business Mathematics

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