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In: Advanced Math

1. A=Z show if xRy <=> xy>=1 is reflexive, transitive and transitive. 2. A=Z show if...

1. A=Z show if xRy <=> xy>=1 is reflexive, transitive and transitive.

2. A=Z show if nRm <=> nm >= 0 is an equivalence relation and show the equivalence clases

3. A= R (real numbers) show if aRb <=> |a| = |b| is an equivalence relations and show the equivalence clases.



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