Math 217-4 Homepage
Winter 2007

Instructor:  Karl Schwede
Text:  Linear Algebra and Its Applications by David C. Lay
Syllabus:   here.
Office Hours:
Monday 12:00-1:00
Tuesday 1:00-2:00
Wednesday 3:00-4:00
Friday 12:00-1:00
I'm also usually available immediately before and after class.

## News:

Click here for another professor's math217 website. He's also working on the final, so it wouldn't hurt to look at his old midterms.
You can also find another professor's midterms here and here
Final Exam on Friday April 20th at 10:30am (contact me asap if you can't make it). The room is 170 Denn.
Review session East Hall 2866 Saturday April 14th. Starts at 3:00pm.

## Extra Credit:

Here's the second extra credit assignment, click here. Due March 6th. This assignment guides you through a proof we didn't do in class.
Here's the third extra credit assignment, click here. Due March 14th. This assignment introduces you to the concept of an arbitrary field.
Here's the fourth extra credit assignment, click here. Due March 26th. This assignment lets you prove that every vector space has a basis. This assignment is pretty hard.
Here's the fifth extra credit assignment, click here. Due March 26th. This assignment introduces you to product and quotient vector spaces. It starts out pretty easy I think.

## Computer Homework:

The second assignment sheet is here. If you are looking for the Maple Sheets, Click Here.

Here's how I would explain that row replacement does not change the solution set, click here.
Here's the solutions to quiz #7. I did problem 2 in more detail than maybe was necessary, but that's probably ok. Click here.
Here are the solutions to the second exam (hopefully I didn't make too many typos). Click here.

## Homework:

### Set #1 - Due Friday, January 12th

Write up neatly, each problem on a separate sheet, and turn in
1.1: Exercise 28
1.2: Exercises 24, 30, (32 is EC, explain your work)
1.3: Exercises 24, 32
1.1: Exercises 9, 13, 17, 23, 29
1.2: Exercises 1, 3, 13, 17, 21
1.3: Exercises 5, 9, 13, 19, 21, 23

### Set #2 - Due Friday, January 19th

Write up neatly, each problem on a separate sheet, and turn in
1.4: Exercise 34
1.5: Exercise 28, 38
1.7: Exercises 22 and 36
1.4: Exercises 5, 11, 13, 17, 19, 23, 29, 33
1.5: Exercises 1, 11, 13, 19, 23, 29
1.7: Exercises 9, 13, 17, 21, 25, 31, 39

### Set #3 - Due Friday, January 26th

Write up neatly, each problem on a separate sheet, and turn in
1.8: Exercises 18, 34
1.9: Exercises 24, 34, 36
1.6: Exercises 3, 5, 11, 13
1.8: Exercises 9, 11, 17, 21, 25, 29, 31 (number 31 is important)
1.9: Exercises 1, 13, 19, 23, 29, 31, 35

### Set #4 - Due Friday, February 2nd

Write up neatly, each problem on a separate sheet, and turn in
2.1: 16, 22
2.2: 24
2.3: 12, 40
Chapter 1 Supplementary Exercises: 1, 7, 10, 11, 13, 17, 21, 22, 23
2.1: Exercises 5, 7, 9, 11, 15, 19, 23, 31
2.2: Exercises 1, 9, 13, 19, 21, 22, 23, 25 (#25 is a good one)
2.3: Exercises 3, 11, 13, 15, 19, 25, 29, 31, 39.

### Set #5 - Due Friday, Feb 16th

Write up neatly, each problem on a separate sheet, and turn in
2.8: 22, 24
2.9: 18, 26, 28
3.1: 38, 42
2.8: 1, 3, 7, 11, 17, 19, 21, 25, 29, 35
2.9: 1, 5, 7, 13, 17, 19, 23, 27 and 28
Chapter 2 Supplementary Exercises: 1, 15, 17
3.1: 1, 9, 13, 21, 31, 39, 41

### Set #6 - Due Friday, Feb 23rd

Write up neatly, each problem on a separate sheet, and turn in
3.2: 28, 42
3.3: 24
4.1: 24, 32
3.2: 1, 9, 19, 25, 27, 33, 35, 39
3.3: 3, 7, 11, 21, 26, 29, 31
Chapter 3 Supplementary Exercises: 1, 3, 7, 11
4.1: 1, 3, 5, 7, 13, 23, 25, 29, 33

### Set #7 - Due Friday, March 9th

Write up neatly, each problem on a separate sheet, and turn in
4.2: 26, 36
4.3: 32, 34
4.4: 20
4.2: 7, 9, 11, 13, 19, 25, 29, 31, 33, 34, 35
4.3: 1, 5, 9, 13, 19, 21, 25, 31, 33, 35
4.4: 3, 5, 9, 11, 15, 17, 21, 23, 24, 29

### Suggested problems before the second exam

4.5: 1, 13, 19, 20, 21, 29, 30, 31, 32
4.6: 1, 3, 5, 11, 17, 18, 21, 27, 28, 29, 33
4.7: 1, 7, 11, 12, 15
Chapter 4 Supplementary Exercises: 1, 4, 5, 7, 9, 11, 12, 13, 17

### Set #8 - Due Friday, March 23rd

Write up neatly, each problem on a separate sheet, and turn in
5.1: 22, 26
5.2: 20
5.3: 24, 32
5.1: 1, 3, 7, 13, 21, 25, 29, 31, 35
5.2: 1, 5, 9, 15, 21, 23
5.3: 1, 3, 5, 7, 13, 19, 21, 23, 27, 29, 31

### Set #9 - Due Friday, March 30th

Write up neatly, each problem on a separate sheet, and turn in
5.3: 28
5.4: 10, 22, 26 (see problem #25 for 26)
5.5: 22
5.4: 1, 5, 7, 9, 15, 19, 25, 29
5.5: 5, 13, 21, 23, 25.
Chapter 5 supplementary exercises: 1, 3 ,5, 7, 9, 11.

### Set #10 - Due Friday, April 6th

Write up neatly, each problem on a separate sheet, and turn in
Chapter 5 Supplementary exercises: 8
6.1: 20, 28
6.2: 24, 28
5.5: 1, 2, 3, 4
6.1: 5, 15, 17, 25, 19, 29, 31
6.2: 5, 7, 11, 13, 17, 23, 29, 33

### Set #11 - Due Friday, April 13th

Write up neatly, each problem on a separate sheet, and turn in
6.3: 22, 24
6.4: 22