Practice Examples Of Symmetric Relations (17.2.2) - Irreflexive Relation
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Examples of Symmetric Relations

Practice - Examples of Symmetric Relations

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a symmetric relation.

💡 Hint: Think of how pairs relate to each other.

Question 2 Easy

Is an empty relation symmetric?

💡 Hint: Consider the lack of pairs in the relation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What defines a symmetric relation?

Only (a
b) present
(b
a) must also be present
No pairs required

💡 Hint: Recall the condition for symmetry.

Question 2

True or False: An empty relation is symmetric.

True
False

💡 Hint: Think about lack of any relationship.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the relation R = {(1, 2), (2, 3), (1, 3)}, determine if it is symmetric, and if not, why.

💡 Hint: Look for missing reciprocal pairs.

Challenge 2 Hard

Create a symmetric relation with at least four pairs. Write out its matrix.

💡 Hint: Ensure pairs maintain the symmetry condition while forming the matrix.

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