Let R be a relation on the open interval (-1, 1) and is given by R= (x, y) : |x+y|<2 . Then which one of the following is correct?

NDA 2024 Mathematics question

Let be a relation on the open interval and is given by . Then which one of the following is correct?

Answer: (D)

For any : . So every ordered pair of elements of the interval belongs to , i.e. is

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Question ID VK-029794