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Points of Intersection

  1. Oct 23, 2011 #1
    1. The problem statement, all variables and given/known data

    Find all points of intersection of the given curve.

    2. Relevant equations

    r = 1 - cos θ, r = 1 + sin θ

    3. The attempt at a solution

    1 - cos θ = 1 + sin θ
    1 = 1 + sin θ + cos θ
    0 = sin θ + cos θ

    After that step, I blank out and can't think about how to get any further on just looking for θ = ?
     
  2. jcsd
  3. Oct 23, 2011 #2

    Mark44

    Staff: Mentor

    So sinθ = -cosθ.

    What if you divide both sides by cosθ?
     
  4. Oct 23, 2011 #3
    I just figured that out, too. Thanks for confirming my answer though.
     
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