If A = {1, 2, 3, 4, 5}, write the relation a R b such that a + b = 8,

1.	If A = {1, 2, 3, 4, 5}, write the relation a R b such that a + b = 8, a ,b € A. Write the domain, range & co-domain.
Answer» $\textbf{Given:}$ $\mathsf{A=\{1,2,3,4,5\}}$ $\mathsf{aRb\iff\,a+b=<klux>8</klux>}$ $\textbf{To find:}$ $\textsf{Doamin, Range and codomain}$ $\textbf{Solution:}$ $\mathsf{aRb\iff\,a+b=8}$ $\mathsf{3+5=8\implies\;_3R_5}$ $\mathsf{4+4=8\implies\;_4R_4}$ $\mathsf{5+3=8\implies\;_5R_3}$ $\therefore\mathsf{<klux>R</klux>=\{(3,5),(4,4),(5,3)\}}$ $\mathsf{Domain=\{3,4,5\}}$ $\mathsf{Range=\{3,4,5\}}$ $\mathsf{Co-domain=\{1,2,3,4,5\}}$ $\textbf{Find more:}$ If R = {X, y)/x = 2y} is a RELATION defined on A = {1, 2, 3, 4, 6, 7, 8} then write all elements of R Also brainly.in/question/19887787 Find the domain and range of the relation, R = ( (x, y) : x,y e Z, xy = 4} brainly.in/question/20462070