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7 Answers

3,4,5,6,8,9
by Level 1 User (660 points)
3,4,6,7,9
by Level 1 User (660 points)
3,4,6,7
by Level 1 User (660 points)
2,3,5,6,8,9
by Level 1 User (660 points)
2,5,8
by Level 1 User (660 points)
2,3,4,5,6,7,8,9
by Level 1 User (660 points)

U={ 2,3,4,5,6,7,8,9 }, n(U)=8

M={ 3,4,7,9 }, n(M)=4

N={ 4,6,7 }, n(N)=3

M⋂N={ 4,7 }, n(M⋂N}=2

M⋃N={ 3,4,6,7,9 }, n(M⋃N)=5

M'={ 2,5,6,8 }, n(M')=4

N'={ 2,3,5,8,9 }, n(N')=5

These are some of the possible sets.

by Top Rated User (1.1m points)

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