Practice Question 2 (21.3) - Lecture -20 - Discrete Mathematics

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6 sample questions

Question 1.
Define a subset in your own words.
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Think about the relationship between two sets.
Question 2.
What does the intersection of two sets represent?
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Consider what elements appear in both sets.
3Question 3.
What does A ∩ B represent?
- All elements in A
- Elements common to A and B
- All elements in B
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Think about what elements overlap.
4Question 4.
If A ⊆ B, does that mean all elements in A are also in B?
- True
- False
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Consider the definition of a subset.
Question 5.
Given sets A = {2, 4, 6} and B = {4, 6, 8, 10}, prove that A ∩ B is a valid subset of C where C = {2, 4, 6, 8, 10}.
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Identify common elements first!
Question 6.
Illustrate how changing the definition of B affects the subset relationship with A.
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Play with different sets and see the outcome.

4 more questions in this section. Enroll free to practise them all.