Answer to Question #313728 in Discrete Mathematics for Donnel

Question

A. Let A = {1,2,3,4,5,6,7,8}, B = [x∈ Z / x is divisible by 3} and C = {x∈ R | x2= 4v X3 = -1}. mark the following true or false.

1. 2 ∈ A
2. -2 ∈ A
3. - 3 ∋ B
4. 11 ∈ B
5. 1 ∈ C
6. 8 ∈ A ∪ B
7. 8 ∈ A ∩ B
8. 2 ∈ A ∩ C
9. 5 ∈ A ∪ C
10. 7 ∋ A ∪ B

B. Let ∪={1,2,3,4,5,6,7,8,9,10}, A={1,2,3,4,5,6,}, B={1,2,3,4,5,7}, C={,2,4,6,8,10}

1. A ∩ B
2. A ∪ C
3. A ∩ B'
4. A-C
5. A' ∩ B'
6. B-C

C. Let U={a,b,c,d,e,f,g,h,i}, A={a,b,c,d,e}, B= {d,e,f,g,h}

1. A' ∩ B
2. A ∩ B'
3. (A ∩ B)'
4. A-B
5. A' ∩ B'
6. (A∩ B)'