1.Let A={1,3,4,6,9}A = \{1, 3, 4, 6, 9\}A={1,3,4,6,9} and B={2,4,5,8,10}B = \{2, 4, 5, 8, 10\}B={2,4,5,8,10}. Let RRR be a relation defined on A×BA \times BA×B such thatR={((a1,b1),(a2,b2)):a1≤b2 and b1≤a2}R = \{((a_1, b_1), (a_2, b_2)) : a_1 \le b_2 \text{ and } b_1 \le a_2\}R={((a1,b1),(a2,b2)):a1≤b2 and b1≤a2}Then the number of elements in the set RRR is:a.160160160b.525252c.262626d.180180180Login to continueOnly logged in users canattempt or see the solution.
