Question:
$A=\{1,2,3,4,5,6,7,8\}$ and if $R=\{(x, y): y$ is one half of $x, x, y \in A\}$ is a relation on $A$, then write $R$ as a set of ordered pairs.
Solution:
Since $R=\{(x, y): y$ is one half of $x ; x, y \in A\}$
So, $R=\{(2,1),(4,2),(6,3),(8,4)\}$
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