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Determine whether or not each of the def...

Determine whether or not each of the definition of given below gives a binary operation. In the event that * is not a binary operation, give justification for this. (i) `O n Z^+, d efin e *b ya*b = a - b`(ii) `O n Z^+,

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The correct Answer is:
(ii),(iii),(iv),(v) are binary
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