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If `R` is a relation on the set `A={1,2,3,4,5,6,7,8,9}` given by `x R y⇔y =3x`, then `R=` (a) `{(3, 1), (6, 2), (8, 2), (9, 3)}` (b) `{(3, 1), (6, 2), (9, 3)}` (c) `{(3, 1), (2, 6), (3, 9)}` (d) none of these.

A

{(3,1),(6,2),(9,3)}

B

{(1,3),(3,9)}

C

{(1,3),(2,6),(3,9)}

D

None of these

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The correct Answer is:
C
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