If the solutions for from the equation ^2 -2 + =0 lie in _ n Z (2n - 6 , 2n+1 , + 6 ) then the set of possible values of is

JEE Advanced Mathematics question

Not in JEE Main syllabus

If the solutions for from the equation lie in then the set of possible values of is

Answer: (A)

The given union is exactly the set of with (one period: ).

Solving the quadratic in : , real only if . - is admissible only when it

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Question ID VK-108495