1
$\begingroup$

I have been trying to derive this approximation but have been unsuccessful in doing so. Any help would be greatly appreciated.

The image at the above mentioned link.

  • 0
    Please avoid forcing people to click through-take the effort to bring the problem here.2011-02-04
  • 0
    I think he doesnt know how to include an image in his post.2011-02-04

3 Answers 3