Question 816840
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{((sqrt(3) - sqrt(5))/(sqrt(3)-sqrt(13)))((sqrt(3) + sqrt(13))/(sqrt(3)+sqrt(13)))}}}
{{{-((3 - sqrt(5)sqrt(3)+sqrt(3)sqrt(13) - sqrt(5)sqrt(13)))/10}}}
{{{(-3 + sqrt(15) - sqrt(39) + sqrt(65))/10}}}