Question:
Let A = {1, 2, 3, 5} AND B = {4, 6, 9}.
Let $R=\{(x, y): x \in A, y \in B$ and $(x-y)$ is odd $\} .$
Write R in roster form.
Solution:
Given: $A=\{1,2,3,5\}$ AND $B=\{4,6,9\}$
$R=\{(x, y): x \in A, y \in B$ and $(x-y)$ is odd $\}$
Therefore, R in Roster Form is,
R = {(1, 4), (1, 6), (2, 9), (3, 4), (3, 6), (5, 4), (5, 6)}