If U = {1, 2, 3, 4} and R = {(x, y): y > x for all x, y ∈ U}, then find the domain and range of R❓?

If U = {1, 2, 3, 4} and R = {(x, y): y > x for all x, y ∈ U}, then f

1.	If U = {1, 2, 3, 4} and R = {(x, y): y > x for all x, y ∈ U}, then find the domain and range of R❓?
Answer» Thanks shivam..? Domain=1 2 3Range= 2 3 4 X+1=yX=1, 2 ,3 ,4