7. U
A B II
III I 34 57 56 66 35 95 IV 94

8. Look familiar?

10. (A and B are disjoint sets).U
A B I II
III

12. U
A B II
III I 1 4 IV 5

13. Look familiar?

14. \ \ \ \

15. U
A B

16. U
A B II
III I 2 1 3 5 4 6 IV

17. U
A B II
III I 2 1 3 5 4 6 IV

18. U
A B II
III I 2 1 3 5 4 6 IV

19. I
Not exact, but similar.

20. U
A B C 5 6 1 2 3 7 4

21. U
A B C 5 6 1 2 3 7 4

22. U
A B C 5 6 1 2 3 7 4

23. U
A B C 5 6 1 2 3 7 4

24. U
A B C 5 6 1 2 3 7 4

25. U
A B C 5 6 1 2 3 7 4

31. = {2,4,6} / / / /

32. / / /
= {1,3,5,7}

33. C’= {3,4,7}
D’= {1,5,6,7}

34. = {1,2,3,4,5,6}

35. = {1,2,3,4,5,6}
= {2}

36. = {1,2,5,6,7}
= {1,2,3,4,5,6}
= {3}
= {2} / /
C = {1,2,5,6}
D’= {1,5,6,7}

37. = ∅
= {1,2,3,4,5,6}
= {2}
= {1,2,5,6}
= ∅
∅ ∩ C = C = {1,2,5,6}
= ∅

38. = {1,2,3,4,5,6}
= {2}

39. = {1,2,3,4,5,6}
= {2}

45. U
M N