Practice Cosets - 15.2.5 | 15. Subgroups | Discrete Mathematics - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define a left coset in your own words.

💡 Hint: Consider which side the group element appears.

Question 2

Easy

What is the significance of Lagrange's theorem?

💡 Hint: Think about relationships between subgroups and their parent groups.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is a left coset?

  • A set of elements formed by subtracting a subgroup from a group
  • A collection formed by multiplying a group element with a subgroup
  • The same as a right coset

💡 Hint: Think about the multiplication order.

Question 2

True or False: The order of a subgroup divides the order of the group.

  • True
  • False

💡 Hint: Consider the implications of subgroup sizes.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a group of integers under addition modulo 8, identify the subgroup generated by 2. List the left cosets of this subgroup.

💡 Hint: Calculate by adding the group element to each member of the subgroup.

Question 2

In a group of order 12, if a subgroup has order 3, determine the number of distinct left cosets.

💡 Hint: Use Lagrange's theorem to divide the total group order by the order of the subgroup.

Challenge and get performance evaluation