Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Row and column matrix operations

  1. Jun 20, 2011 #1
    Are you allowed to mix and match row and column operations? For (a), using only row operations, I cannot get the matrix into the form they want. Could I swap a few of the columns around to do so?

    For (b), I got it into the form they want. The rank of the matrix is 2 because I have I2 there.

    http://i111.photobucket.com/albums/n149/camarolt4z28/IMG_20110620_195851.jpg [Broken]

    http://i111.photobucket.com/albums/n149/camarolt4z28/IMG_20110620_210944.jpg [Broken]

    http://i111.photobucket.com/albums/n149/camarolt4z28/IMG_20110620_195802.jpg [Broken]
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Jun 20, 2011 #2
    You can do column and row operations when finding the determinant.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook