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Homework Help: Linear equation, span, vectors, linear systems of equations

  1. Sep 10, 2011 #1
    show that S and T have the same span in R^3 by showing that the vectors in S are in the span of T and vise versa.

    S= {(1,0,0), (0,1,0)}
    T= {(1,2,0), (2,1,0)}

    im a little confused on how to start off on this problem.. help?!
  2. jcsd
  3. Sep 10, 2011 #2


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    Well, basically you just do what they suggested. For example, how would you show (1,2,0) is in the span of (1,0,0) and (0,1,0)?
  4. Sep 10, 2011 #3
    thats what im confused about.. how would i start it off..?
  5. Sep 10, 2011 #4
    Last edited: Sep 10, 2011
  6. Sep 10, 2011 #5
    okay. i get it. haha... it was actually easy.. i was just a little confuse :) thanks!!!
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