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Let * be a binary operation on N defin...

Let `*` be a binary operation on `N` defined by `a*b=LCM(a ,\ b)` for all `a ,\ b in Ndot` Find `2*4,\ 3*5,\ 1*6` .

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RD SHARMA ENGLISH-BINARY OPERATIONS-All Questions
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  2. Let A be a set having more than one element. Let * be a binary oper...

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  3. Let * be a binary operation on N defined by a*b=LCM(a ,\ b) for all ...

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  4. Let '*' be a binary operation on N given by a*b=LdotCdotM(a , b) for a...

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  7. Let A be any set containing more than one element. Let * be a binary...

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  8. Check the commutativity of * on Z defined by a*b=a+b+a b for all a ,\ ...

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  14. Check the commutativity of * on Q defined by a*b=a+a b for all a ,\ b ...

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  15. Check the commutativity and associativity of * on R defined by a*b=...

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  16. Check the commutativity of * on Q defined by a*b=(a-b)^2 for all a ,\ ...

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  17. Check the commutativity and associativity of * on Q defined by a*b=...

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  18. Let *, be a binary operation on N, the set of natural numbers defined ...

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  20. Check the commutativity and associativity of * on Q defined bya*b= (...

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