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If A is the set of students of a school then write, which of following relations are Universal, Empty or neither of the two. R_(1)={(a,b):a,b " are ages of students and" |a-b| gt 0} R_(2)={(a,b):a,b " are weights ofstudents, and "|a-b|lt0} R_(3)={(a,b):a,b " are students studying in same class"}

Answer» <html><body><p> <br/> </p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :`R_(1)` : is universal <a href="https://interviewquestions.tuteehub.com/tag/relation-1183220" style="font-weight:bold;" target="_blank" title="Click to know more about RELATION">RELATION</a>. <br/> `R_(2)`: is <a href="https://interviewquestions.tuteehub.com/tag/empty-2611346" style="font-weight:bold;" target="_blank" title="Click to know more about EMPTY">EMPTY</a> relation. <br/> `R_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)`: is <a href="https://interviewquestions.tuteehub.com/tag/neither-1113494" style="font-weight:bold;" target="_blank" title="Click to know more about NEITHER">NEITHER</a> universal nor empty</body></html>


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