Results 1 to 3 of 3

Math Help - matrix help

  1. #1
    Junior Member
    Joined
    Sep 2007
    Posts
    55

    matrix help

    hi, i was having some difficulty with the following questions..

    for the first one, don't infinite solutions only apply to homogeneous systems with more unknowns than linear functions (when reduced). the first question is asking for 3 equations with 3 unknowns giving infinite solutions.. so i don't get how that works out.

    the second question i'm having trouble with because do i solve it reducing first, and solving the unknowns or .. ?? thanks!!




    also: this one too


    Last edited by finalfantasy; February 3rd 2009 at 06:52 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    o_O
    o_O is offline
    Primero Espada
    o_O's Avatar
    Joined
    Mar 2008
    From
    Canada
    Posts
    1,407
    Image doesn't seem to be opening.

    As for your first question, yes you are correct. If there are more unknowns than equations in a homogeneous system, then there will be infinitely many solutions.

    However, we don't know what happens for the other cases. The statement doesn't mention anything about them. For example, you can have systems of equations with the number of equations and unknowns equal to each other and have infinitely, none, or exactly one solution. We don't know until we actually solve it.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Sep 2007
    Posts
    55
    Hello, how about now:






    i found the answer to the fourth one. but the third i am having trouble with.

    as well this question thanks!!




    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: November 27th 2010, 03:07 PM
  2. [SOLVED] Elementary matrix, restore to identity matrix
    Posted in the Advanced Algebra Forum
    Replies: 3
    Last Post: February 13th 2010, 09:04 AM
  3. unitary and upper triangular matrix => diagonal matrix
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: December 10th 2009, 06:52 PM
  4. Replies: 3
    Last Post: March 17th 2009, 10:10 AM
  5. Replies: 4
    Last Post: September 24th 2007, 04:12 AM

Search Tags


/mathhelpforum @mathhelpforum