Final answer:
The Linear algebra book by Friedberg, Insel, and Spence, 4th edition offers additional resources such as answer keys and guides for both students and instructors. There are also augmented explanations in the first four chapters for a better understanding.
Step-by-step explanation:
The subject of this question is Additional resources. The student is asking for information regarding the additional resources available for the Linear algebra book by Friedberg, Insel, and Spence, 4th edition.
According to the information provided, the book offers various resources such as answer keys for selected exercises available at the end of the book. There are also additional resources for both students and instructors, including Getting Started Guides, PowerPoint slides, and answer and solution guides for instructors and students. These resources can be accessed on OpenStax.org.
If the student needs further clarification, they can refer to the augmented explanations in chapters one through four, which provide a more comprehensive and informative foundation for the book.