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Let A=Z, the set of integers. Let R(1)={...

Let `A=Z`, the set of integers. Let `R_(1)={(m,n)epsilonZxxZ:(m+4n)` is divisible by 5 in `Z}`.
Let `R_(2)={(m,n)epsilonZxxZ:(m+9n)` is divisible by 5 in `Z}`.
Which one of the following is correct?

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