Question 839201
When looking at the domain of a rational function (fraction), make sure that there are no negative numbers in even numbered roots (usually square roots) and the denominator is not 0.<P>
This function has no roots, so the Domain is all real numbers except whatever makes the denominator 0.<P>
{{{8x^2-1 = 0}}}<P>
{{{8x^2 = 1}}}<P>
{{{x^2 = 1/8}}}<P>
{{{x = sqrt(1/8)}}}<P>
So the domain is all real numbers except {{{sqrt(1/8)}}} which = + or - {{{1/2sqrt(2)}}} = + or - {{{2sqrt(2)/8}}}