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प्रश्न
The binary operation * defined on N by a * b = a + b + ab for all a, b ∈ N is ____________.
विकल्प
commutative only
associative only
both commutative and associative
none of these
MCQ
रिक्त स्थान भरें
उत्तर
The binary operation * defined on N by a * b = a + b + ab for all a, b ∈ N is both commutative and associative.
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