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 ]