# Chapter 02 What is a Unit Vector

##### Vectors (CHAPTER 2)
###### Topic

What is a unit vector?

###### Description

Learn the definition of a unit vector.

This video teaches you what a unit vector is.

###### All Videos for this Topic
• Prove that if a set of vectors contains a null vector, the set of vectors is linearly dependent [YOUTUBE 2:29] [TRANSCRIPT]
• Prove that if a set of vectors is linearly independent, then a subset of it is also linearly independent [YOUTUBE 5:42][TRANSCRIPT]
• Prove that if a set of vectors is linearly dependent, then at least one vector can be written as a linear combination of others [YOUTUBE 4:06] [TRANSCRIPT]
• How can vectors be used to write simultaneous linear equations? [YOUTUBE 5:08] [TRANSCRIPT]
• How can vectors be used to write simultaneous linear equations? Example [YOUTUBE 3:13][TRANSCRIPT]
###### Complete Resources

Get in one place the following: a textbook chapter, a PowerPoint presentation, individual YouTube lecture videos, multiple-choice questions, and problem sets on Vectors.