Question 1001509
The output of the numerator is always positive.
The domain is limited because of the square root.
{{{6x^6-1>=0}}}
{{{x^6>=1/6}}}
{{{x>=1/6^(1/6)}}} and {{{x<=-1/6^(1/6)}}}
So when, 
{{{x>=1/6^(1/6)}}}, the denominator is positive, so when {{{x}}} heads towards {{{infinity}}}, the function value heads to {{{sqrt(6)/5}}}
and when,
{{{x<=-1/6^(1/6)}}}, the denominator is negative, so when {{{x}}} heads towards {{{-infinity}}}, the function values heafs to {{{-sqrt(6)/5}}}