# Mathematics 22

### Text: Linear algebra and it applications, by David C. Lay

Homework: Our homework grader is Zeynep Oz. She will be asked to grade each set on a basis of two points each. Essentially correct work rates 2, incorrect work rates 0, and something in between rates 1. Homework does not count for the final grade unless you end between two grades. Then homework will move you to one or the other. Do the homework even though it may not count for the final grade! There is ample evidence to show that those who do badly on the homework also do badly on the final grade.

## Homework Assignments

Assignment due Monday, July 1

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 Monday. July 8

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

Assignment due Monday, July 15

Section 1.6: page 64: 2, 8, 10, 14, 16, 18
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
Section 2.1: page 107: 2, 4, 8, 10, 18, 20, 25, 26, 29, 31

### First Hour Exam, Thursday, July 18, in 102 Bradley at 7 pm.

Assignment due Monday, July 22

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

Assignment due Monday, July 29

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

### The second hour exam is scheduled for Thursday, August 8 in 102 Bradley at 7 pm.

Assignment due Monday, August 5

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

Assignment due Monday, August 12

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

Problems to be worked on at the end (not to be turned in)

Section 5.4: page 327: 2, 4, 6, 8, 10, 12, 14, 15, 22, 23, 24, 25
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 hours: Mondays, Wednesdays and Fridays 3-4. I am generally available in my office at other times. If there is no time I will tell you.