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!

Question about reducing a square root.

  1. Jul 20, 2012 #1
    IDK if this should be in the precalc section, but I was wondering how to reduce

    [itex] \sqrt{(3+\sqrt{5})} / \sqrt{(3-\sqrt{5})} [/itex] to [itex] (\sqrt{5} + 1) /(\sqrt{5} - 1)[/itex]
     
  2. jcsd
  3. Jul 20, 2012 #2

    ehild

    User Avatar
    Homework Helper
    Gold Member

    Notice that 3±√5=0.5(6±2√5)=.5(5±2√5+1)=....

    ehild
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Question about reducing a square root.
  1. Square roots question (Replies: 17)

Loading...