Question 152756
Ratonalize the denominator:
{{{5/(sqrt(3)+sqrt(5))}}} Multiply top and bottom by the conjugate of ({{{sqrt(3)+sqrt(5)}}}) and this is ({{{sqrt(3)-sqrt(5)}}}).
{{{5*(sqrt(3)-sqrt(5))/((sqrt(3)+sqrt(5))*(sqrt(3)-sqrt(5)))}}}
{{{5(sqrt(3)-sqrt(5))/(3-5) = 5(sqrt(3)-sqrt(5))/-2}}}= {{{(-5(sqrt(3)-sqrt(5)))/2}}}