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Prove the equation

  1. Mar 21, 2007 #1


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    sry I wrote two threads. (Same thing inside) so delect this please.
    Last edited: Mar 21, 2007
  2. jcsd
  3. Mar 21, 2007 #2


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    Start with the 2 point formula to express the line between your 2 points. Now find the mid point, and use the point slope formula to express the line you need.
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