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Conics Problem

  1. Jun 12, 2008 #1
    1. The problem statement, all variables and given/known data
    http://img117.imageshack.us/img117/1289/archbw3.jpg [Broken]​

    2. Relevant equations
    Formula on picture above.

    3. The attempt at a solution
    I am just wondering if I got the answer right.
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jun 12, 2008 #2
    Yes, it's correct.
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