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COS1501-Ass 1 2023 with 100% correct questions and answers
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---6April 20232022/2023A+
- Which one of the following alternatives is FALSE regarding the number sets Z, Z+ , Z≥ , Q and R? 
 
Z≥ Z 
Z+ Z≥ 
R Q 
Z+ R 
R Q 
 
 
 
Which one of the following definitions is a correct definition for symmetric set difference? 
 
1. The complement of B relative to A is denoted by A - B, and is the set of all those elements of A which do not belong to B. More briefly A - B = {x | x A and x B}. This is also referred to as the difference between sets A and B. 
 
2. The symmetric difference b...
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