UPSC NDA Math Model Paper 9

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Question : 45 of 120

Marks: +1, -0

A relation defined as R = {(1, 2), (3, 4), (2, 4)} find R‌−1.

{Ø, (2, 1), (4, 3), (4, 2)}
{{Ø}, (2, 1), (4, 3), (4, 2)}
{(2, 1), (4, 3), (4, 2)}
None of these

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