math308s09

MATH 308 / Section 509

Differential Equations

Spring 2009

1. [ pdf ] due on February 4 in class

2. [ pdf ] due on February 11 in class

3. [ pdf ] due on February 18 in class

4. [ pdf ] due on March 4 in class

[ pdf ] extra credit problems

5. [ pdf ] due on March 11 in class

6. [ pdf ] due on April 1 in class

7. [ pdf ] due on April 8 in class

8. [ pdf ] due on April 15 in class

[ pdf ] extra credit problem due April 20

9. [ pdf ] due on April 22 in class

10. [ pdf ] due on April 29 in class

Basic problems should be done by everyone, advanced are for students seeking A and B grades.

Chapter 1

p. 5 basic: # 2,3,5 advanced: # 6,8

p. 14 basic: # 7,8,11,12,17,20,22,31 advanced: # 5,14,18,21,29

p. 22 basic: # 5,6,7,9,10c advanced: # 4,8,15,17

p. 28 basic: # 5,8 advanced: # 12(hand),13

Chapter 2

p. 46 basic: # 3(hand),5(hand),12,15,23,27,29 advanced: # 26,28,30,31,33

p. 55 basic: # 10,14,21,25a,29,30,32 advanced: # 13,28,33,36

p. 78 advanced: # 13,21

Chapter 3

p. 98 basic: # 1,4,14,15,25 advanced: # 17(hard),26

p. 107 basic: # 4,5,6,10 advanced: 11,15

p. 115 basic: # 8,9,18 advanced: 25

p. 122 basic # 1, 2nbsp;

p. 132 basic: # 7,19 (Ignore tolerance.)

p. 142 basic: # 7 advanced: 20 (Ignore tolerance.)

Chapter 4

p. 164 basic: # 6, 7, 19, 20, 21, 22 advanced: 29, 30, 31, 36

p. 174 basic: # 7, 13, 15, 18, 19 advanced 20, 21

p. 179 basic: # 5, 6, 8

p. 187 basic: # 11, 19, 21, 49 advanced: 46(Use y(x)=x^r, not x(t)=exp(t).)

p. 196 basic: # 13, 22, 29, 32(Use y(x)=x^r, not x(t)=exp(t).) advanced: 28, 41

p. 200 basic: # 4, 11 c) advanced: 18, 19, 20

p. 209 basic: # 15, 31, 33, 41, 51 advanced: 56

p. 215 basic: # 10, 21, 22, 24 advanced: 27

Chapter 6

p. 342 basic: # 10,12,17,19

p. 349 basic: # 21,29

p. 355 basic: # 11,15,21 advanced: # 18

p. 359 basic: # 3

Chapter 5

p. 268 basic # 1,18,31

p. 279 basic # 3,11

p. 292 basic # 2,3,7,9,13,15

p. 302 basic # 5

Chapter 9

p. 526 basic # 11

p. 530 basic # 11

p. 539 basic # 6a,13,15,16,19,25,29,30,34,38,39

p. 548 basic # 1,12,18,22,23

p. 559 basic # 8,10,17,23,24,29,30,33,35,42,43,47,49

p. 567 basic # 1,7,9,13,17,21

p. 573 basic # 8,13,21,35

p. 584 basic # 24

Chapter 7

p. 377 basic # 7,11,19,29ahj

p. 383 basic # 9,21

p. 392 basic # 3,9,11,21

p. 401 basic # 3,21,23,25

p. 413 basic # 7,11,61

p. 423 basic # 1,13,15

p. 430 basic # 11

p. 434 basic # 1

1. Basic equation [ file ]

2. Direction field [ file ]