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Expressing polar equation as a Cartesian equation

  1. Sep 22, 2012 #1
    1. The problem statement, all variables and given/known data

    Express the following equation in Cartesian form
    [tex] r = 1 - cos(θ) [/tex]

    2. Relevant equations
    [tex] x = r*cos(θ) [/tex]
    [tex] y = r*sin(θ) [/tex]
    [tex] r^{2} = x^{2} + y^{2} [/tex]
    [tex] tan(θ) = \frac{y}{x} [/tex]

    3. The attempt at a solution

    I have no idea... a hint would be nice thanks!

    BiP
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 22, 2012 #2

    gabbagabbahey

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    If [itex]x=r\cos\theta[/itex], what is [itex]\cos\theta[/itex]? If [itex]x^2+y^2=r^2[/itex], and [itex]r\geq 0[/itex], what is [itex]r[/itex]?
     
  4. Sep 22, 2012 #3
    Thanks!

    BiP
     
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