Question 107294
{{{5/(sqrt(3) + sqrt(5))= 5/(sqrt(3) + sqrt(5))* (sqrt(3) - sqrt(5))/(sqrt(3) -sqrt(5)) = 5(sqrt(3) - sqrt(5))/(sqrt(3)^2 -sqrt(5)^2) = 5(sqrt(3) - sqrt(5))/ (3-5) = - (5(sqrt (3) - sqrt(5)))/2}}}