MAT 2580 Linear Algebra Fall 2024

Professor Poirier | D710 | Fall 2024

Page 2 of 19

Test #2 review part 2

Post due Sunday, November 3

The instructions for this activity are similar to those for the Test #1 review activity.

Test #2 is scheduled for Monday, November 4. As a class, you will create a review sheet here on the OpenLab. Each student will solve one problem and post their full solution on the OpenLab. You may take a photo of your hand-written work and place it directly in your post, or you may upload it to Dropbox or Google drive (or some other file-sharing platform) and copy-paste the link to your photo in your OpenLab post.

Topics:

  • Sections 3.1, 3,2, 4.1 to 4.8 (note: you may need some material that was covered on Test #1 as well)
  • Make sure all the topics are represented; don’t solve a problem that one of your classmates has already posted the solution for.

Resources: choose one problem to solve from:

Your post must include:

  1. Where you found the problem (for example, “textbook homework exercise 4.4.1”)
  2. Your complete solution, showing all your work
  3. Title: Test #2 Review
  4. Category: Test #2 Review

Test #2 review part 1

Comment due Sunday, November 3

Test #2 will be given in class Monday, November 4. The format will be similar to the format of Test #1.

Recall from Test #1 that one question asked you a series of conceptual true/false questions where you had to justify your answer. Another question asked you for a series of examples of mathematical objects (mostly matrices) satisfying certain conditions.

To prepare for Test #2, for this week’s OpenLab assignment, you will comment on this post with two questions that you come up with yourself, as well as their answers.

  1. Your first question should be conceptual and phrased as a statement which is either always true or always false. Your answer should indicate whether the statement is true or false together with a sentence explaining the answer.
  2. Your second question should be asking for an example of a mathematical object satisfying certain conditions. Your answer should provide this example together with together with a sentence explaining the example and why it satisfies the conditions.

You can use the Test #1 questions for inspiration (the different versions of the tests had similar questions, so check out your classmates’ solutions for the other versions).

Try to focus on the material covered in class since Test #1. You can see the list of topics on the schedule.

Week 8 checklist

Monday, October 21 to Sunday, October 27

Lessons

WeBWorK

  • Projections
  • Cross Product
  • Parametric Lines
    • Even though we did not spent a lot of time on this topic in class, you can still complete all the problems on this WeBWorK set
  • Planes in $\mathbb{R}^3$

OpenLab

  • Reply to any MAT 1375 students’ questions here
  • Are you bad at math??? (Instructions)

Coming up…

  • Test #2: Monday, November 4
  • Last day to officially withdraw from the course: Wednesday, November 6
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