Lecture 9 ends on page 89 of the Lecture Notes and on page 142 of the Textbook.

Note:  The battery on the mic began to die out at around 50 minutes into the Lecture.  From when the problem became significant, I have edited in about 15 minutes from the Fall lecture.  The content is very similar, but there could be some small discrepancy with the Lecture Notes.  I replaced the battery and we finish the Lecture with today's class material.