Differential Equations

Math 23, Spring 2017

Homework

Written homework should be turned in to the homework boxes outside of Kemeny 108 by 3:30pm each Wednesday (unless otherwise stated).

No late homework will be accepted. However, your lowest homework score will be dropped.

Please follow the homework submission guidelines.

Cooperation on homework is permitted (and encouraged), but if you work together, do not take any paper away with you--in other words, you can share your thoughts (say on a blackboard), but you have to walk away with only your understanding. In particular, you must write the solution up on your own. Please acknowledge any cooperative work at the end of each assignment.

Assignment Due Date Problems
HW 1 Wed, April 05 §1.1: #7, 9, 12, 24
§1.2: #5, 12 (Hint: do (b) first), 13
§1.3: #8, 14
§2.1: #15, 17, 30, 33
§2.2: #8, 18, 25
Also please submit your FERPA waiver.
HW 2 Wed, April 12 §2.3: #2, 4, 8 (Hint: Solve 8 (c) numerically.)
§2.4: #11, 14, 22, 25, 28, 33
§2.5: #4, 12, 15
§2.6: #2, 14, 16, 24, 27
Use exercise 24 to solve the equation $$(3y^2 + 4xy) + (4xy + 3x^2) \frac{dy}{dx} = 0.$$
HW 3 Wed, April 19 §3.1: # 11, 12, 16, 22, 23, 27
§3.2: # 10, 19, 22, 27, 34, 39
§3.3: # 1, 5, 11, 20, 26, 35
§3.4: # 6, 13, 21, 28
HW 4 Wed, April 26 §3.5: # 9, 14, 16, 18, 29, 35
§3.6: # 4, 10, 15, 21, 22, 23, 32
§3.7: # 6, 19, 24 §3.8: # 1, 6, 15
HW 5 Fri, May 05
3:30 pm
§6.1 # 2, 14, 24
§6.2 # 16, 26, 29, 32
§6.3 # 18, 20, 25
§6.4 # 8, 17
§6.5 # 8, 14, 18
§6.6 # 1, 2, 16, 22
HW 6 Wed, May 10
§7.1: # 7, 15
§7.3: # 11, 15, 25
§7.4: # 3, 5, 6
HW 7 Wed, May 17
§7.5: # 8, 12, 18, 25
§7.6: # 11, 14, 25
§7.8: # 10, 15, 18 (only (a), (b), (c), (d))
HW 8 Wed, May 24
§7.9: # 2, 4, 11, 14
§9.1: # 15, 18, 20, 21
§9.2: # 2, 4, 6, 7, 8, 25
HW 9 Mon, May 29
3:30 pm
§9.3: # 4, 6, 9, 20, 27
§9.4: # 3, 5
§9.5: # 4, 5, 6