problems-1-223-F07

problems-1-223-F07 - M ATH 223 P ROBLEM S ET 1 D UE 7 S EPT...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
M ATH 223 P ROBLEM S ET 1 D UE : 7 S EPT 4 S EPTEMBER 2007 It was my mistake about the due date on this. If you like, you may hand it in until Friday, 7 September, at my office in Malott with no penalty. Hereafter, problem sets will be due on Tuesdays in lecture. When you hand in this problem set, please indicate on the top of the front page how much time it took you to complete. Reading. § 1.1–1.3. Problems from the book: 1.1.4, 1.1.6 (d) & (g). 1.2.2, 1.2.6. 1.2.8, 1.2.11, 1.2.12, 1.2.22, 1.2.21, 1.2.23. 1.3.2, 1.3.5, 1.3.7, 1.3.12. Additional problems: 1. Suppose that A = bracketleftbigg a b c d bracketrightbigg is a matrix with integer entries. What condition(s) can you put on the entries a , b , c , and d to ensure that the inverse A - 1 also has integer entries? Is your condition necessary as well as sufficient? 2. Let - a = bracketleftbigg
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern