1.

Let R be a relation in the set N given by R={(a,b): a+b=5, b>1}. Which of the following will satisfy the given relation?

A. (2,3) ∈ R
B. (4,2) ∈ R
C. (2,1) ∈ R
D. (5,0) ∈ R
Answer» B.


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