Math 20D Homework Assignments

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Math 20D Fall 2009
Homework Assignments

Updated 11/18/09

These homework assignments are subject to revision during the term. Please check this page regularly for updates.

Homework assignments will be collected at the end of discussion sessions. Please arrive a few minutes earlier to turn in your assignments.

If you cannot make it to the discussion session, you can also drop your homework at the HW drop box located at 6^th floor of APM building. The deadline is 10am on the due date. Late homework will NOT be accepted. Graded homework will be returned to your during discussion (either at the beginning or the end, up to your TA).

Note that the last homework (HW 9) will not be collected, but the materials will be covered in the final exam.

Homework 1

Due Thursday, October 1

Section 1.1: 7, 9, 15-20, 22, 23, 24
Section 1.2: 4, 7, 12, 16, 19
Section 1.3: 7, 12, 14, 15, 19
Section 2.1: 14, 15, 22bc, 31
Section 2.2: 3, 4, 11ac, 16ac, 32ab

Homework 2

Due Thursday, October 8

Section 2.3: 3, 8, 16
Section 2.4: 2, 4, 14, 15, 25
Section 2.5: 2, 12, 13, 22
Section 2.6: 4, 6, 8, 10

Homework 3

Due Thursday, October 15

Section 3.1: 4, 12, 17, 20, 28
Section 3.2: 3, 13, 24, 25
Section 3.3: 2, 10, 15, 23
Section 3.4: 10, 14, 25

Homework 4

Due Thursday, October 22

Section 3.5: 8, 13, 15, 16

Homework 5

Due Thursday, October 29

Section 3.6: 4, 5, 6, 7, 14, 15, 18
Section 3.7: 7, 9, 10.
Section 7.1: 3, 5, 7, 8, 22.
Section 7.2: 1, 10, 21c, 23, 24.

Homework 6

Due Thursday, November 5

Section 7.3: 7, 14, 16, 17, 19.
Section 7.4: 6a, 7a.
Section 7.5: 4, 5, 9, 15. (For 4, 5, draw the trajectories, but you don't need to draw the direction fields separately.)

Homework 7

Due Thursday, November 12

Section 7.6: 3, 5, 9, 10. (For 5, draw the trajectories, but you don't need to draw the direction field separately. You do not need to draw the trajectories for problem 3.)
Section 7.8: 2, 3, 7, 9. (For 3, draw the trajectories, but you don't need to draw the direction field separately. You do not need to draw the trajectory for problem 2.)

Homework 8

Due Thursday, November 19

Section 7.9: 3, 4, 7.

Homework 9

Section 6.1: 3, 6, 7, 15.
Section 6.2: 4, 10, 11, 20, 23.
Section 6.3: 4, 10, 12, 14, 16
Section 6.4: 3, 5, 16ab

This homework will not be collected, but Section 6.1 through 6.4 will be covered in final exam.