Set Theort

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?

• {3, 5, 7}

• {2, 3, 5, 7}

• {2, 3, 5, 7, 9}

• {1, 2, 3, 5, 7, 9}

The Universal Set = { -4, 3, -2, -1, 0, 1, 2, 3 ,4} and A = {0}.
What is the complement of A?

• {-4, -3, -2, -1, 0, 1, 2, 3}
• {-3, -2, -1, 1, 2, 3}
• {-4, -3, -2, -1, 1, 2, 3, 4}
• {-4, -3, -2, -1, 1, 2, 3}

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∪ B?

• {3, 5, 7}
• {2, 3, 5, 7}
• {2, 3, 5, 7, 9}
• {1, 2, 3, 5, 7, 9}

If
P = {0, 1, 2, 3, 4}, Q = {4, 6, 8}
R = {6, 12, 18} Then what is (P ∩ Q) ∪ (Q ∩ R)?

• {4}
• {4, 6}
• {4, 6, 8}
• {1, 2, 3, 4, 6, 8}

Find n(A) for the set:
A = {14, 16, 18, 20, 22, 24}

• 6
• 12
• 4
• 8

If A = {1, 2, 3, 4, 5, 6} and B = {1, 2, 3, 5, 7, 9} What is A ⋂ B?

• {1, 2, 3, 4, 5, 6, 7, 9}
• {1, 2, 3, 5}
• {4, 6, 7, 9}
• { }

If A = {1, 2, 3, 4, 5, 6}, B = {1, 2, 3, 5, 7, 9} and C = {3, 5, 6, 7, 8, 9}, what is (A ⋃ B) ⋂ (B ⋃ C)?

• {1, 2, 3, 4, 5, 6, 7, 9}
• {1, 2, 3, 4, 5, 6, 7, 8, 9}
• {1, 2, 3, 5, 6, 7, 9}
• { }

If A = {1, 2, 3, 4, 5, 6}, B = {1, 2, 3, 5, 7, 9} and C = {3, 5, 6, 7, 8, 9}, what is (A ⋃ B) ⋂ (B ⋃ C)?

• {1, 2, 3, 4, 5, 6, 7, 9}
• {1, 2, 3, 4, 5, 6, 7, 8, 9}
• {1, 2, 3, 5, 6, 7, 9}
• { }

If

P = {0, 1, 2, 3, 4}, Q = {4, 5, 6, 7}

R = {3, 6, 9}, and S = {6, 12, 18}

Then what is (P ∪ Q) ∩ (S ∪ R)?

• {6}

• {3, 6}

• {4, 6}

• {1, 2, 3, 4, 5, 6, 7, 9, 12, 18}

If

A = {1, 3, 5, 15},

B = {2, 3, 5, 7}

C = {2, 4, 6, 8}

then what is (A U B) ∩ C ?

• {1,3,5}

• {1,2,3}

• {2,3,5}

• {2}