📊 Discrete Mathematics
Q. The relation R defined in A = {1, 2, 3} by aRb, if
a2 – b2
£ 5. Which of the following is false?
  • (A) r = {(1, 1), (2, 2), (3, 3), (2, 1), (1, 2), (2, 3), (3, 2)}
  • (B) r–1 = r
  • (C) domain of r = {1, 2, 3}
  • (D) range of r = {5}
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✅ Correct Answer: (D) range of r = {5}

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