1. Not finding help here? Sign up for a free 30min 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!

A little confused

  1. Jan 26, 2006 #1
    why does det(kA)=(k^n)detA and not kdetA?
     
  2. jcsd
  3. Jan 26, 2006 #2

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    The matrlix kA has a factor of k in every element. Each term in the determinant of an nXn matrix has n factors, so k comes in n times.
    Therefore, det(kA)=k^n det(A).
     
  4. Feb 6, 2006 #3
    thank you very much!!!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: A little confused
  1. A little confused (Replies: 2)

  2. A little factorisation (Replies: 0)

Loading...