If the value of n(Y)+n(Z) is k^2 , then |k| is Let (S=\...

If the value of $n(Y)+n(Z)$ is $k^2$, then $|k|$ is Let (S=\{1,2,3,4,5,6\}) and $X$ be the set of all relations $R$ from $S$ to $S$ that satisfy both the following properties: i. $R$ has exactly 6 elements. ii. For each ((a, b) \in R), we have (|a-b| \geq 2). Let (Y=\{R \in X) : The range of $R$ has exactly one element (\}) and (Z=\{R \in X: R) is a function from $S$ to (S\}). Let $n(A)$ denote the number of elements in a set $A$.