1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Identify type of conic and more

  1. Dec 2, 2012 #1
    Identify type of conic and more....

    1. The problem statement, all variables and given/known data
    Identify the type of conic, find the vertices, the foci, directrix, and asymptotes (if they exist) for the equation e=45/(10+9sin(θ))


    2. Relevant equations
    As far as equations I don't know of any to help me find which type of conic, or any characteristics of this.


    3. The attempt at a solution
    Graphing in polar mode, I find that it is an ellipse.
    I think we have to convert it from a polar equation into Cartesian coordinates.
     
  2. jcsd
  3. Dec 2, 2012 #2

    haruspex

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    Re: Identify type of conic and more....

    I assume e is what's normally written as r in polar.
    Multiply out the equation. Then try rearranging it so that when you square both sides every occurrence of r is either as r2 or as r sinθ.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Identify type of conic and more
  1. Conic section (Replies: 5)

  2. Calculus and Conics (Replies: 0)

  3. Problem in conics (Replies: 8)

Loading...