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# Rings and groups

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A number of questions involving rings and groups. Example:

3) Let R be a ring and [equationA]. Let [equationB] be the ring of n x n matrices with entries in R. What is the identity element of S?

*(Please see attachment for complete list of problems)

##### Solution Summary

There are several questions regarding rings, groups, subrings, and quaternions. Example: Let R be a ring and [equationA]. Let [equationB] be the ring of n x n matrices with entries in R. What is the identity element of S?

##### Probability Quiz

Some questions on probability

##### Graphs and Functions

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##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.