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RELATIONS AND FUNCTIONS — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsRELATIONS AND FUNCTIONS1 Mark
Question
Let × be a binary operation on set Q - {1} defind by a × b = a + b - ab : a, b ∈ Q - {1}. Then × is:
  1. Commutative.
  2. Associative.
  3. Both (a) and (b).
  4. None of these.
✓

Answer

  1. Both (a) and (b).

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