UPSC NDA II 2013 Mathematics Paper

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Question : 37 of 120

Marks: +1, -0

Which one of the following is an example of nonempty set?

Set of all even prime numbers
(x:x2−2=0. and x is rational )
{x:x is a natural number, x<8 and simultaneously x>12}
{x:x is a point common to any two parallel lines }

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