COS 1501 ASSIGNMENT 1
Johns Hopkins University
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COS 1501 ASSIGNMENT 1
- Exam (elaborations) • 8 pages • 2021
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ASSIGNMENT 01 (SEMESTER 1) 
Consider the following sets, where U represents a universal set: 
U = {0/ , a, b, c, {b}, {c}, {b, c}} A = {0/ , {b, c}} B = {a, {b}, {c}} C = {0/, a, b, c}. 
Questions 1 to 10 are based on the sets defined above. 
NOTE: The Venn diagrams in study unit 4 will help you to understand the definitions in 
study unit 3. 
Question 1 Alternative 1 
B = U − B = {0/ , a, b, c, {b}, {c}, {b, c}} − {a, {b}, {c}} = {0/, b, c, {b, c}} 
Set complement: The elements 0/, b, c ...
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