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Let S={0,1,2,3,4} and * be an operation ...

Let `S={0,1,2,3,4}` and * be an operation on `S` defined by `a*b=r ,` where `r` is the last non-negative remainder when `a+b` is divided by `5.` Prove that * is a binary operation on S.

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RD SHARMA ENGLISH-BINARY OPERATIONS-All Questions
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