Question 667868
f(x) = {{{(4)/(sqrt(x)-13)}}}
...
0 = {{{sqrt(x)-13}}}
13 = {{{sqrt(x)}}}
{{{13^2 = sqrt(x)^2}}}
169 = x
...
All real numbers excluding 169.
(-{{{infinity}}}, 169) U (169, {{{infinity}}})
.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.