18.13: Sets

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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. $A \cup B=\{1,2,3,4,5\}$ 15. $A \cap C=\{4\}$

17. $A^{c}=\{6,7,8,9,10\}$ 19. $D^{c} \cap E=\{t, s\}$

21. $(D \cap E) \cup F=\{\mathrm{k}, \mathrm{b}, \mathrm{a}, \mathrm{t}, \mathrm{h}\}$ 23. $(F \cap E)^{c} \cap D=\{\mathrm{b}, \mathrm{C}, \mathrm{k}\}$

25. $clipboard_e8d3b9f3516f3be2cfbf94e124457a31a.png$ 27. $clipboard_e87196bcad6b5b4aca23490b860387fd6.png$

29. One possible answer: $(A \cap B) \cup(B \cap C)$

31. $\left(A \cap B^{2}\right) \cup C$ 33. $5$

35. $6$ 37. $\mathrm{n}(A \cap C)=5$

39. $\mathrm{n}(A \cap B \cap C)=3$ 41. $\mathrm{n}(G \cup H)=45$

43. 136 use Redbox

45. $clipboard_e1419de5ff10acf22efba5e760a0dea99.png$ a) 8 had seen exactly one b) 6 had only seen SW

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