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!

Homework Help: Basic Algebra

  1. Dec 16, 2005 #1
    Can someone explain to me why E = .5(k/a)(e^2 - 1)/(1 - e^2) = .5(k/a)

    The conjugate won't work, how do I show this?
  2. jcsd
  3. Dec 16, 2005 #2
    You can factor -1 out of the denominator and then cancel (e^2-1), but that leaves you with E = .5(k/a)(e^2 - 1)/(1 - e^2) = -.5(k/a)

  4. Dec 16, 2005 #3
    Actually that was what I meant 0.5(k/a), thanks
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Basic Algebra Date
Linear equation, point slope conversion Feb 26, 2018
Moving things to the other side of the equals sign Aug 13, 2016
Basic algebra question Feb 11, 2015
Basic Linear Algebra Problem Jan 29, 2015
Simple basic algebra May 14, 2014