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if R is a relation from X to Y then X is called .........
Domain
if R is a relation from X to Y then Y is called .........
codomain
if R = { (1,2) , (2,3) , (5,0) } where R is function then the range is ......
{ 2 , 3 , 0 }
if R = { (3,7) , (0,2) , (1,4) } where R is function then the domain is ......
{1 , 3 , 0 }
