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Questions  >>  CBSE XII  >>  Math  >>  Relations and Functions
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Q)

In the event that $\ast$ is not a binary operation, give justification for this: On $Z^+,$ defined $\;\ast\;by\;a\;\ast\;b=|a-b|.$

Note: This is part 4 of a 5 part question, split as 5 separate questions here.

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