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Which of the following is not a relation on R?
(A) A subset of R containg 2 real numbers
(B) A set containing a single point (a,b) where both a and b are integers
(C) the set {(r,s)  ∈ RxR : r< s} 
(D) The set {(a,b) ∈ RxR: a+ b3=1}

asked in Set Theory & Algebra by Veteran (15.4k points)   | 56 views

1 Answer

+3 votes
Best answer
R is set of Real numbers
a subset of R which contains 2 real numbers Example:{2,3} is not a relation on R.it is just subset of R
BUT a relation should On a set A should be a subset of A X A..
here option A is subset of R, not R X R
answered by Veteran (11.6k points)  
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