12.3: Chapter 3 Exercise Solutions
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Chapter 3: Sets
1. \(\{m, i, s, p\}\)
3. One possibility is: Multiples of \(3\) between \(1\) and \(10\)
5. Yes
7. True
9. True
11. False
13. \(A ⋃ B = \{1, 2, 3, 4, 5\}\)
15. \(A ⋂ C = \{4\}\)
17. \(A^c = \{6, 7, 8, 9, 10\}\)
19. \(D^c ⋂ E = \{t, s\}\)
21. \((D ⋂ E) ⋃ F = \{k, b, a, t, h\}\)
23. \((F ⋂ E)^c ⋂ D = \{b, c, k\}\)
25.
27.
29. One possible answer: (A ⋂ B) ⋃ (B ⋂ C)
31. \((A ⋂ B^c ) ⋃ C\)
33. \(5\)
35. \(6\)
37. \(n(A ⋂ C) = 5\)
39. \(n(A ⋂ B ⋂ C^c ) = 3\)
41. \(n(G ⋃ H) = 45\)
43. \(136\) use Redbox
45.
a) \(8\) had seen exactly one
b) \(6\) had only seen SW