## 21-260: Differential Equations

The final exam will be a comprehensive exam. It will be the same format, and
roughly twice as long as the midterm exams. You will be given the same table
of Laplace transforms as on Exam #3. Approximately 25% of the exam
will be taken from the material covered in the following:
# Review Problems: Chapters 7 and 9.

**Read:**Review the reading assignments from

Chapter 7, Sections 4, 5 and 6.
Chapter 9, Sections 1, 2, 3 and 6.
**Exercises:**

Section 7.4: #3, 11, 19, 33.
Section 7.5: #7, 11, 17, 27, 33.
Section 7.6: #3, 7, 11, 15.
Section 9.1: #13, 15, 19.
Section 9.2: #3, 7, 9, 11.
Section 9.3: #3, 5, 7.
Section 9.6: #2, 4, 5(with y_t(x,0)=0).
**Materials:**

I have your graded practice exam, if you took one in recitation on
December 12.