## Math 22: Linear Algebra (with Applications)

## Summer 2001

Math 22

Instructor: Jim Baumgartner
Lecture times: MWF 10:00-11:05
X-hour Th 12-12:50
Classroom: 105 Bradley
Text: Linear algebra and its applications, by David C. Lay

**Homework:** Our homework grader is Adeel Meer. He has requested that each section's homework be turned in on a separate page, and that the pages be stapled together. He is willing to be blitzed about any questions you may have. He has been asked to give a grade of 2 for each set for substantially complete solutions, 0 for poor or no solutions, and 1 for a set in between. Your homework score may count for your grade if you end up between two grades; otherwise not.

#### Homework Assignments:

due Wednesday, June27

Section 1.1 page 10: 6, 7, 11, 15, 17, 21, 23, 33

Section 1.2 page 25: 6, 8, 12, 14, 17, 20, 21, 25, 26, 31, 32

Assignment due Friday, July 6

Section 1.3: page 36: 2, 5, 9, 12, 21, 25, 26, 29

Section 1.4: page 46: 7, 13, 18, 19, 20, 22, 23. 37, 38

Section 1.5: page 55: 3, 7, 9, 12, 15, 21, 25, 26, 28, 30, 32

Section 1.6: page 64: 2, 8, 10, 14, 16, 18

#### The hour exams have been scheduled. They will be given in Room 102 Bradley on July 16 and August 6, starting at 7 pm.

Assignment due Wednesday, July 11:

Section 1.7: page 73: 2, 8, 10, 12, 14, 16, 18, 21, 27, 31

Section 1.8: page 83: 1, 3, 6, 8, 9, 12, 18, 21, 22, 26, 28, 30, 32, 35

Assignment due Wednesday, July 18:

Section 2.1: page 107: 2, 4, 8, 10, 18, 20, 25, 26, 29, 31

Section 2.2: page 117: 1, 3, 12, 21, 25, 26, 27, 28, 32, 35, 37

Section 2.3: page 123: 2, 3, 5, 8, 9, 13, 15, 17, 18, 25, 26, 27, 28, 29, 30, 35, 36

due Wednesday, July 25

Section 3.1: page 185: 8, 9, 22, 33, 35

Section 3.2: page 193; 1, 3, 9, 10, 20, 25, 26, 31, 40

Section 4.1: page 217: 1, 2, 4, 5, 6, 8, 10, 12, 15, 16, 18, 20, 22, 30, 31, 32

#### Class will be canceled August 1 and 3. Arrangements for using the x-period to make them up will be announced later.

The next midterm exam has been arranged for Friday, August 10.

Assignment due Monday, August 6:

Section 4.2: page 228: 1, 4, 6, 8, 10, 12, 16, 17, 22, 28, 30, 31, 32, 33, 36

Section 4.3: page 237: 2, 4, 6, 8, 10, 14, 15, 16, 20, 23, 24, 29, 30, 31, 32

Section 4.4: page 248: 4, 6, 8, 10, 12, 19, 20, 23-28

Section 4.5: page 255: 2, 4, 6, 8, 9, 14, 18, 22, 23, 26, 29-31

#### Adeel is going home, so no further grading will be undertaken. But the following assignments should prove valuable for the final exam. There is an answer sheet for the even-numbered problems, and Jill Haltigan has a copy of it, which may be xeroxed.

Do this one when you can

Section 4.6: page 263: 2-16 (even, 20, 22, 24, 28, 30

Section 4.7: page 270: 2, 4, 5, 6, 8, 10, 13, 14

Section 5.1: page 302: 1, 3, 8, 12, 14, 16, 18, 24, 25, 27, 29, 30

Section 5.2: page 311: 2, 4, 10, 12, 16, 18, 23, 24

Section 5.3: page 319: 4-16(even), 23, 24, 25, 27, 28

Section 5.4: page 327: 2, 4, 6, 8, 10, 12, 14, 15, 22, 23, 24, 25

#### The final exam is scheduled. It will be Sunday, August 26, at 1 pm in 102 Bradley. As usual, we cannot afford more than three hours, but that has been adequate so far.

This is the final homework set for you to try:

Section 6.1: page 376: 4, 6, 7, 8, 10, 16, 18, 19, 24, 29, 30, 31

Section 6.2: page 386: 2, 6, 8, 10, 12, 14, 22, 23, 25, 27, 28, 29

Section 6.3: page 395: 2, 3, 5, 7, 11, 15, 21

Section 6.4: page 402: 1, 5, 9, 12, 13, 17, 19

*Office: 105 Choate House*

*E-mail jim.baumgartner@dartmouth.edu*

*Phone: 646-3559*

Office hours: Tu 1-4 and any time I am in (I'll tell you if I have no time)

**The honor code:** You may discuss the homework with one another. However, in each assignment turned in you must have done the majority of the actual mathematical work, and all of the writeup, independently. Obviously, no collaboration is allowed on the exams.