View the videos for Chapter 4 below:

Chapter 4, Example 2, Lines 1-4

Chapter 4, Example 3, Lines 1-5

Chapter 4, Example 4, Lines 1-3

Chapter 4, Example 5, Lines 1-5

Chapter 4, Example 6, Lines 1-4

Chapter 4, Example 7, Lines 1-5

Chapter 4, Example 9, Lines 1-4

Chapter 4, Example 10, Lines 1-3

Chapter 4, Example 11, Lines 1-3

Chapter 4, Example 12, Lines 1-3

Chapter 4, Example 13, Lines 1-5

Chapter 4, Example 14, Lines 1-3

Chapter 4, Example 15, Lines 1-8-A

Chapter 4, Example 16, Lines 1-3

Chapter 4, Example 17, Lines 1-3

Chapter 4, Example 18, Lines 1-4

Chapter 4, Example 19, Lines 1-5-A

Chapter 4, Example 20, Lines 1-3

Chapter 4, Example 21, Lines 1-5-A

Chapter 4, Example 22, Lines 1-4

Chapter 4, Example 23, Lines 1-7

Chapter 4, Example 24, Lines 1-12