MATH10120 Midterm: Math10120F14 Exam Solutions ReviewEX1F07
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Let u = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, a = {1, 3, 5, 7, 9}, and. What is a b ? (a) {1, 2, 3, 5, 6, 7, 9} (b) {1, 5, } (c) {1, 2, 4, 5, 6, 8, 10} (d) {3, 7, 9} (e) {1, 3, 4, 5, 7, 9, 10} The matching elements are shown in red a = {1. Hence a b = {3. 2 which of the following sets is equal to. Here denotes the empty set. (a) s t (b) (c) s t (d) s t (e) s t . Using demorgan"s laws, we have (s t ) = (s t ) and we know that. A = a for any set a. Therefore (s t ) = (s t ) = s t . A group of 30 students who exercise regularly, were asked about their exercise preferences.
