1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Linear Algebra help

  1. Dec 7, 2005 #1


    User Avatar

    I'm really really struggling on this question and am becoming very depressed from the stress that is being generated.

    http://www.math.rutgers.edu/courses/250/250C-f05/f05lab6.pdf [Broken]

    Question 3 Part a) I've been stuck on it for hours. The last part where it talks about "show by algebraic calculation" Please help me. I'm really sad. :confused: :confused: :confused: :confused:
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Dec 7, 2005 #2


    User Avatar

    I've tried using dot products but I don't see how I can represent that into a matrix. I don't see how doing a dot product of a matrix with a transposed matrix is even possible. Q dot product Q' is the identity matrix somehow.. wouldn't it be all 0s since the vectors are all orthogonal to eachother?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Linear Algebra help
  1. Linear Algebra Help? (Replies: 3)

  2. Linear algebra help (Replies: 1)