Practice Set Operations (15.7) - Sets - Discrete Mathematics

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6 sample questions

Question 1.
What is the union of A = {2, 3} and B = {1, 2, 4}?
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Combine all unique elements from both sets.
Question 2.
If A = {1} and B = {2}, what is A ∩ B?
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Look for common elements between both sets.
3Question 3.
What does A ∪ B represent?
- Elements only in A
- All unique elements in A and B
- Common elements between A and B
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Think about combining sets.
4Question 4.
Is the intersection of two disjoint sets always empty?
- True
- False
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What does disjoint mean?
Question 5.
Prove that the union of three sets A, B, and C is equivalent to the union of A and B combined with set C.
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Focus on how unions work to combine elements.
Question 6.
Given two sets A = {1, 2, 3} and B = {2, 3, 4}, calculate A × (B - {3}).
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First, focus on the difference then the Cartesian product.

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