1. Not finding help here? Sign up for a free 30min 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!

Latus rectum conics math help

  1. Dec 17, 2003 #1
    "A line segment through a focus with endpoints on the ellipse and perpendicular to the major axis is a latus rectum of the ellipse. Therefore, an ellipse has two latus recta. Show that the length of each latus rectum is 2b^2/a."

    I've been stuck on this for a little while now. Can anyone point me in the right direction?
     
  2. jcsd
  3. Dec 17, 2003 #2
    Draw an ellipse, show the relationships of A and B, do a little trig....
     
  4. Dec 17, 2003 #3
    Substitute x = ae find y coordinate 2y will be the length of rectum
     
  5. Dec 18, 2003 #4
    Thank you :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Latus rectum conics math help
  1. Conical Pendulum - help? (Replies: 12)

  2. Conical pendulum help (Replies: 1)

Loading...