7. Let R be the relation on N, defined by x + 2y = 8, then the domain of Ris
(a) {2,4,6)
(b) {2,4,6,8)
(c) {2,4,8}
(d) {1,2,3,4)
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Answer:
y=8-x/2
Relation={(2,3),(4,2),(6,2)}
Domain={2,4,6}
Answer is option (a) {2,4,6}
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