Math 23

Differential Equations

Section 02 Homework 

 

 

 

Lectures

Sections in Text

Homework Assignment

Wednesday September 16

1.1, 1.2 and start 1.3

Section 1.1, Exercises 7, 12

Section 1.2, Exercise 8

Section 1.3, Exercise 12

Due Wednesday September 23

Friday September 18

1.3, 2.1 

Section 2.1 Exercises 15, 17, 33

Due Wednesday September 23

Monday September 21

2.2, 2.4

Section 2.2 Exercises 3,8, Section 2.4 Exercise 3, 14, 25, 33

Due Wednesday September 30

Wednesday September 23

2.3

Section 2.4 Exercise 28

Due Wednesday September 30

Friday September 25

2.5, 2.6

Section 2.3 Exercises 2, 4 and 8 (part a and b only)

Due Wednesday September 30

Monday September 28

2.6

Section 2.6 Exercises 2, 14, 24, and 28

Use exercise 24 to solve the equation

(3y2+4xy)+(4xy+3x2)y’=0

Due Wednesday October 7

Wednesday September 30

3.1, 3.2

Section 2.5 Exercises 3,13, and 15 (part a only)

Section 3.1 Exercises 11, 12

Due Wednesday October 7

Friday October 2

3.3, 3.4

Section 3.2 Exercises 11, 19, 23, 27, 35, 39

Due Wednesday October 7

Monday October 5

3.4

Section 3.3 Exercises 1, 5, 11, 19

Section 3.4 Exercise 2, 13, 1423, 25

Due Wednesday October 14

Wednesday October 7

First Midterm is 6-8 PM on

Thursday October 8 in Wilder 104

3.5

Section 3.5  Exercises 1, 2, 13, 14, 16, 18, 19 

Due Wednesday October 14

Friday October 9

3.6, 3.7

Section 3.6 Exercises 10, 15,  Section 3.7 Exercise 6,

Due Wednesday October 14

Monday October 12

3.7, 3.8

Section 3.8 Exercise 9, 11

Due Wednesday October 21

Wednesday October 14

4.1, 4.2 

Section 4.1 Exercises 2, 6, 8, Section 4.2 Exercises 13, 16, 17, 21

Due Wednesday October 21

Friday October 16

4.3

Section 4.3 Exercise 3,5 and Section 4.4 Exercise 2, 13

Due Wednesday October 21

Monday October 19

4.4

Section 7.1 Exercises 5, 9, Section 7.2 Exercises 6.c, 15

Due Wednesday October 28

Wednesday October 21

7.1, 7.2

Section 7.3 Exercises 3, 8, 19, 25, 29

Due Wednesday October 28

Friday October 23

7.3

Section 7.4 Exercises 5, 6, Section 7.5 Exercises 9, 11, 12, 14

Due Wednesday October 28

Saturday October 24

Special day of classes

7.4, 7.5

Section 7.6 Exercises 3, 5, 7  (for each system, only solve and express the general solution in terms of real-valued functions)

Section 7.8 Exercises 2, 3, 5 (for each system, only solve and express the general solution in terms of real-valued functions)

Due Wednesday October 28

Monday October 26

7.6, 7.8

No Homework

Due Wednesday November 4

Wednesday October 28

Second Midterm is 6-8 PM on

Thursday October 29 in Wilder 104

7.7

Section 7.7 Exercise 1

Due Wednesday November 4

 Friday October 30

5.1, 5.2

Do sufficiently many of Section 5.1 Exercises 1-16 so that you are comfortable with the power series

These exercises are not to be submitted and they will not be graded

Monday November 2

Tuesday November 3

Final day to withdraw from a course

5.3

Section 5.2 Exercises  3, 5, 15(a), 16(a),  Section 5.3 Exercises 2, 7

Due Wednesday November 11

Wednesday November 4

5.4 

Section 5.4 Exercises 2, 3, 11, 16

Due Wednesday November 11

Friday November 6

10.1

Section 10.1 Exercises 1, 5, 10, 14

Due Wednesday November 11

Monday November 9

10.2

Recommended homework

Section 10.2 Exercises 14, 15

This homework will not be collected or graded

Wednesday November 11

10.3, 10.4

Recommended homework

Section 10.3 Exercise 6,

Section 10.4 Exercise 16, 17

This homework will not be collected or graded

Friday November 13

10.5

Recommended homework

Section 10.5 Exercises 3, 5, 9, 10

This homework will not be collected or graded

Monday November 16

10.6

Recommended homework

Section 10.6 Exercise 9 part a only, Exercise 13 part a only.

This homework will not be collected or graded

Wednesday November 18- Thursday November 19 Pre-Examination Break

 

 

Math 23 Final Exam is 3-6 PM on Friday November 20 in Kemeny 008