quiz 3 answers

Linear Algebra with Applications

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

View Full Document Right Arrow Icon
Name: Tuesday section time: Student ID: Math 20F - Linear Algebra - Winter 2003 Quiz #3 — January 28 (Do not discuss quiz with students who haven’t taken it yet – until 8:00pm.) 1. What are the determinants of the following three matrices? A = 1 0 2 3 0 4 5 0 0 0 0 1 0 0 2 3 ANSWER: det( A ) = - fl fl fl fl fl fl fl fl 1 0 2 3 0 4 5 0 0 0 2 3 0 0 0 1 fl fl fl fl fl fl fl fl = - 1 · 4 · 2 · 1 = - 8 . B = 1 1 2 2 - 1 - 1 - 2 - 2 3 - 1 - 1 3 - 3 1 1 - 3 ANSWER: det( B ) = 0, since row 2 is a scalar multiple of row 1. C = 1 - 1 2 2 0 3 7 7 1 0 3 3 2 - 2 4 5 ANSWER: det(
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