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[" 28.The relation "'R'" in "N times N" ...

[" 28.The relation "'R'" in "N times N" such that "(a,b)R(c,d)hArr a+d=b+c" is "],[[" (a) reflexive but not symmetric "," (b) reflexive and transitive but not symmet "],[" (c) an equivalence relation "," (d) none of the these "]],[" EPENENARELARPPSt PONINAPERERISTERS ERERES SIS Sig anv relation on A,then "]

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