10. Integral Domains and Fields
Units — Quiz
Test your understanding of units with 5 practice questions.
Practice Questions
Question 1
In a ring with identity, what is a unit?
Question 2
Which elements are units in $\mathbb{Z}$?
Question 3
Which element is a unit in $\mathbb{Z}_{10}$?
Question 4
Which statement is true in every field?
Question 5
Which element is not a unit in $\mathbb{Z}_8$?