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 $A$.
(There are two questions based on $PARAGRAPH " 1 "$, the question given below is one of them)
($1$) If $n(X)={ }^m C_6$, then the value of $m$ is. . . .
($2$) If the value of $n(Y)+n(Z)$ is $k^2$, then $|k|$ is. . . .
Give the answer or quetion ($1$) and ($2$)
Let $X = \{ 1,\,2,\,3,\,4,\,5\} $ and $Y = \{ 1,\,3,\,5,\,7,\,9\} $. Which of the following is/are relations from $X$ to $Y$
The Fig shows a relation between the sets $P$ and $Q$. Write this relation
in roster form
What is its domain and range ?
Let $R$ be a relation from $Q$ to $Q$ defined by $R=\{(a, b): a, b \in Q$ and $a-b \in Z \} .$ Show that
$(a, b) \in R$ and $(b, c) \in R$ implies that $(a, c) \in R$
Define a relation $R$ on the set $N$ of natural numbers by $R=\{(x, y): y=x+5$ $x $ is a natural number less than $4 ; x, y \in N \} .$ Depict this relationship using roster form. Write down the domain and the range.