Section 6.2 Limits of the form zero over zero: Which section are you referring to?
This section starts with the sentences
"In the last section, we were interested in the limits we could compute using continuity and the limit laws. What about limits that cannot be directly computed using these methods?"
But in my comments on Section 6.1, I point out that the limits posed in the questions in Section 6.1 cannot be computed using the limit laws. In Section 5.3, students did compute limits using limit laws.
There is some confusion here because of your ambiguous use of the word "Section". Throughout the book, clarity would be improved if you used the words "Chapter" and "Section" for the Appropriate things. For example, Chapter 5 ought to have five sections:
Chapter 5 Limit Laws
Section 5.0 Learning Outcomes (the thing that you have numbered as 5)
Section 5.1 Equal or Not
Section 5.2 Continuity
Section 5.3 The Limit Laws
Section 5.4 Continuity of Piecewise Functions