1.Let A={2,3,4}A = \{2, 3, 4\}A={2,3,4} and B={8,9,12}B = \{8, 9, 12\}B={8,9,12}. Then the number of elements in the relationR={((a1,b1),(a2,b2))∈(A×B)×(A×B):a1 divides b2 and a2 divides b1}R = \{((a_1, b_1), (a_2, b_2)) \in (A \times B) \times (A \times B): a_1 \text{ divides } b_2 \text{ and } a_2 \text{ divides } b_1\}R={((a1,b1),(a2,b2))∈(A×B)×(A×B):a1 divides b2 and a2 divides b1}is:a.363636b.242424c.181818d.121212Login to continueOnly logged in users canattempt or see the solution.
