Practice Question 3 (21.4) - Lecture -20 - Discrete Mathematics - Vol 1
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Question 3

Practice - Question 3

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a symmetric relation?

💡 Hint: Consider how pairs are related.

Question 2 Easy

Provide an example of an anti-symmetric relation.

💡 Hint: Think about how elements relate when they are equal.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following pairs must both be present for a symmetric relation?

(i
j)
(i
j)
(j
i)
(i
k)

💡 Hint: Think about how the pairs relate to each other.

Question 2

True or False: All reflexive relations are also symmetric.

True
False

💡 Hint: Consider the definitions of both properties.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a set of 5 elements, calculate the number of different symmetric relations possible. Show your workings.

💡 Hint: Focus on how each pair can be chosen.

Challenge 2 Hard

Explain why a relation that is both reflexive and asymmetric cannot exist. Provide a contradiction.

💡 Hint: Consider the definitions and how they interact.

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