Let A={1,2,3,4,5} and R be a relation from A to A, R = {(x, y): y = x + 1}. Find the domain.
(a) {1,2,3,4,5}
(b) {2,3,4,5}
(c) {1,2,3,4}
(d) {1,2,3,4,5,6}
The question was asked in an international level competition.
My enquiry is from Relations in division Relations and Functions of Mathematics – Class 11