QUESTION 1 1.1. State whether the following statements are true or false: {3} {5} E {1, 3, 5} {b} {5} 2 {1,3} 5} {Cl {5} E {{1},{3},{5}} (d) {5} E {{1}} {3}, {5}} 1.2. Let A = {3, 5, 7} and B = {15,16, 17,18}, and define a relation R from A to B as follows: For all (x, y) E A x B, (x,y)ER E Z. {a} Is 3 R 15? Is 3 R 16? Is (7, 17) E R? ls(3,18) E R? {b} Write R as a set of ordered pairs. {(2) Write the domain and co-domain ofR. {d} Is R a function from A to B? Explain.