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Homework Help: 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


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    Homework Helper

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

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