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Let A=NtimesN and ast be a binary o...

Let
`A=NtimesN` and `ast`
be a binary operation on A defined by (a,b)*(c,d) = (a + c,b + d)
Prove that
`ast`
is associative

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V PUBLICATION-RELATIONS AND FUNCTIONS-QUESTION BANK
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  7. Let X={1,2,3,4,5,6,7,8,9}. Let R1 be a relation in X given by R1={(x, ...

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  8. Let f: X rarr Y, be a function. Define a relation R in X given by: R={...

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  10. Find the number of all one-one functions from set A={1,2,3} to itself.

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