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RELATIONS AND FUNCTIONS — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsRELATIONS AND FUNCTIONS1 Mark
MCQ
Let $\times$ be a binary operation on set $Q - \{1\}$ defind by $a \times b = a + b - ab : a, b \in Q - {1}.$ Then $\times$ is:
  • A
    Commutative.
  • B
    Associative.
  • ✓
    Both $(a)$ and $(b).$
  • D
    None of these.
✓

Answer

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

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