Math 21
Spring 2017

Home Course Schedule Homework Exams and Resources Office Hours

Logistics for handing in homework

The homework is due on Wednesdays at 9am. Homework submissions will be handled electronically via the Gradescope platform. Students registered for the course at the end of the first weekend should receive an email to sign up for Gradescope. Otherwise, please contact your instructor starting the morning of January 17th.

Gradescope accepts only electronic submissions, so you will need to scan your homework before uploading it. Make sure to allot plenty of time to follow the submission instructions here before each deadline.

Assignments will be posted no later than a week before they are due. Any change to a posted assignment will be announced in class and via email.

For the written assignments

Be sure to show your work (helps with partial credit and lets us comment on your process).

Remember: calculators are not allowed for the exams and homework is one way to help prepare yourself for the tests. Therefore, you should avoid using a calculator when completing your homework. However, there are some homework problems that we feel are important for building conceptual understanding and yet a calculator might be helpful. Such problems are indicated below with a superscript "T".

Practice problems

Along with each assignment, there is also a list of "Practice Problems." These are not to be turned in but are strongly encouraged. You cannot succeed in this class without doing the practice problems. Given the large number of practice problems, you might want to look at some each week while completing the homework and save others for refreshing the material throughout the quarter/exam studying.

Most of these practice problems are odd numbers, meaning you can check your work by looking at the answers in the back of your textbook. Practice problems that are even numbered at great to discuss with your peers and/or in office hours.

Solutions to the homework assignments will be posted here within a week after the due date.

Problem Set # Due Date Written Assignment
(To be written up, scanned, and submitted)
Practice Problems
0 Wed, Apr 12 Optional assignment in order to have lowest homework grade dropped Consider brushing up on some precalculus
1 Wed, Apr 12 Problems for HW 1
Table of integrals from book
Solutions
7.6: 5, 9, 11, 13, 19, 23, 27, 29, 31, 45, 47, 53-62
7.7: 1, 3, 5, 7, 9, 21, 29
Math 19 review problems and solutions
Math 20 review problems and solutions
2 Wed, Apr 19 Problems for HW 2
Table of integrals from book
Supplemental comparison notes
Solutions
7.6: 7, 15, 17, 21, 25, 33, 37, 39, 41, 45
7.7*: 11, 13, 15, 17, 19, 23, 25, 29
*Note: for problems 11-25, "decide" can involve a comparison or it could involve an attempt to compute the integral exactly (so showing a limit exists or not).
9.1: 7, 9, 11, 13, 15, 17, 19, 21, 23
3 Wed, Apr 26 Problems for HW 3
Solutions
Note: There is a mistake in the solution to Problem 4 (9.2 #24). The sum should be -810 / (1 - (-2/3)) = -486.
9.1: 25
9.2: odd numbers from 1-17, 23, 25, 27, 29, 31, 49
9.3: odd numbers from 1-33, 37, 47, 57-64
Midterm 1 on Wednesday, April 26 at 8pm in Hewlett-200

Topics are those covered in the first three weeks of the course.

You can find more information on the Exams page.

4 Wed, May 3 Problems for HW 4
Solutions
9.3: 35, 37
9.4: 1, 3, 5, 7, 9, 11, 13, 49
5 Wed, May 10 Problems for HW 5
Solutions
A quick guide to the convergence tests
9.4: odd numbers 15-47, 51, odd numbers 61-83, 99, 102-118
6 Wed, May 17 Problems for HW 6
Solutions
9.5: 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 54-67
Midterm 2 on Wednesday, May 17 at 8pm in Hewlett-200

The exam will focus mainly on those topics covered in Weeks 4 through 6 of the course.

You can find more information on the Exams page.

7 Wed, May 24 Problems for HW 7
Solutions
9.5: 35, 37
10.1: 1, 3, 5, 7, 9, 11, 13, 15, 47, 49-53
8 Wed, May 31 Problems for HW 8
Solutions
10.2: 1, 3, 5, 7, 9, 11, 13, 15, 33, 51-55
10.3: 1, 3, 5, 7, 9, 11, 13, 33, 51-55
10.4: 1, 3, 5, 7, 9, 11
9 Wed, June 7 Problems for HW 9
Solutions
10.Review: 25, 27, 29b, 33, 35, 37, 39
See the Exams page for information about review problems.
Final exam on Friday, June 9 at 7pm in Cubberley Auditorium
(Cubberley Auditorium is in the School of Education.)

You can find more information on the Exams page.

Spring 2017 -- Department of Mathematics, Stanford University