## 21-260: Differential Equations

# Scheduling Information

**Exam Time:**
Lecture 1: 9:30-10:20 (regular class time) on Wednesday 22 October.
Lecture 2: 10:30-11:20 (regular class time) on Wednesday 22 October.
**Review Session:**

Time: Monday, 20 October, 7:00-8:30pm
Place: DH 1212
**Office Hours:** Changes for Exam Week

Check with your TA for any changes to their regular schedule.
**Homework:** You may pick up your graded HW#8 (as well as earlier
homeworks, if you have not already done so) from your TA during
Recitation on Tuesday 21 October.

# Exam #1 Review:

**Read:**

Section 3.1, pp. 129-135.
Section 3.2, pp. 137-140.
Class Notes - September 24 (General solutions for linear,
homogeneous, constant coefficient equations).
Section 3.6.
Section 3.8, pp. 186-195.
Section 3.9.
Section 6.1.
Section 6.2.
Section 6.3.
Section 6.4.
Section 6.5.
**Reference Table:** You will be given a table of Laplace
Transforms to use during the exam. I will post that table here once I
have it written up (Probably Saturday).

**Exercises:**

Section 3.1 #7, 8, 11, 13, 17.
Section 3.2 #8, 11, 16, 21.
Section 3.4 #7, 9, 17, 19, .
Section 3.5 #3, 5, 11, 13.
Section 3.6 #1, 9, 13, 17.
Section 3.8 #7, 8, .
Section 3.9 #1, 9, 11.
Section 6.1 #3, 4, 7, 11, .
Section 6.2 #1, 3, 5, 13, 15.
Section 6.3 #7, 9, 13, 15.
Section 6.4 #1, 3, 11, 21.
Section 6.5 #1, 3, 5, 19.
**Previous Exam Problems:**

All of these problems (or versions of them) were given as 21-260
exam problems in a previous semester. Available as a pdf file.
Here is the table of Laplace Transforms
you will be given with the exam.