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Linear Algebra Question - Two Planes

  1. Sep 11, 2009 #1
    1. The problem statement, all variables and given/known data

    http://carlodm.com/images/math1.png [Broken]

    My question is:

    Isn't it possible for two planes to have one solution? Geometrically, what if their edges were touching and that was the extent of their intersection?
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 11, 2009 #2

    Dick

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    What's the 'edge' of a plane? I thought planes were unbounded and didn't have 'edges'?
     
    Last edited by a moderator: May 4, 2017
  4. Sep 11, 2009 #3
    Oh. Right. I forgot that went infinite. The darn diagrams make it look like they have edges!
     
  5. Sep 11, 2009 #4

    Dick

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    Tough to draw a picture of a plane without edges. Try to sympathise with the illustrators and forgive their lapses.
     
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