7. Variation on 9.1 #34-37). Let e "greater than" relation, he "greater than or equal to relation, R2 = { (a, bje R2102 b } , t Ka = { (a, b) E R2|a b } , the "less than" relation, Ka = { (a, b) E R2|a-b} , the "less than or equal to" relation, = { (a, b) R2|a = b } , the "equal to" relation, R6-{ (a, b) E R2lab} , the "unequal to" relation. (a) Find RiUR4 [5 points] Replace this text with your answer. (b) Find Rin R55 points Replace this text (c) Find R2 o R65 points] with vour answer. Replace this text with your answer. (d) Find R3R6 [5 points] Replace this text (e) Find Ri -R45 points with vour answer. Replace this text with your