Question 148465
{{{(sqrt(11)-sqrt(5))/(sqrt(11)+sqrt(5))}}}
Multiply NUM and DEN by {{{sqrt(11)-sqrt(5)}}} (similar to the conjugate)
={{{((sqrt(11)-sqrt(5))^2)/((sqrt(11)+sqrt(5))*(sqrt(11)-sqrt(5)))}}}
={{{((11 - 2sqrt(55) + 5))/(11 - 5)}}}
={{{((16-2sqrt(55)))/6}}}
={{{((8 - sqrt(55)))/3}}}