Recent content by billli

  1. B

    Set forms a basis, and span help

    Thanks for the reply Unco! from matlab: http://img156.imageshack.us/img156/582/set.jpg so P(x) belongs to the span of S. as it has a unique solution.
  2. B

    Set forms a basis, and span help

    http://img239.imageshack.us/img239/6250/picture2.png Sorry, but I do not know how to use Tex. And thanks for the tips! From this, a) does not form the basis, and for b) p(x) belongs to the span (not too sure about b) as it has a row of zeros)
  3. B

    Set forms a basis, and span help

    Homework Statement http://img16.imageshack.us/img16/6606/50381320.jpg Homework Equations Please see above picture The Attempt at a Solution I believe for question a) I just need to add up all the matrices and then row reduce to RREF, which gives me: [1,0,0] [0,1,0] or Do I...