Topic: Discrete Mathematics and its Applications" Chapter 9: Relations:Relations and Their Properties"

7, Variation on 9.1#34-37]. Let Ri = { (a, b) E R2|a b } , the "greater than" relation, R2 = { (a, b) E R2|a-b } , the "greater than or equal to" relation, R3 = { (a, b) e R2|a b } , the "less than" relation, R. = { (a, b) E R2|a-b, the "less than or equal to" relation, Be = { (a, b) E R21a = } , the "equal to" relation, Be = { (a, b) E R2lab } , the "unequal to" relation. (a) Find R1U R4 (b) Find RinR5 (c) Find R2 R6 (d) Find R3R6 (e) Find Ri R