MCQ
Let A = N × N and × be the binary operation on A defined by (a, b) × (c, d) = (a + c, b + d). Then × is:
  • A
    Commutative.
  • B
    Associative.
  • Both (a) and (b).
  • D
    None of these.l

Answer

Correct option: C.
Both (a) and (b).

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