Question 1136377
<pre><b>{{{expr(f/g)(x)="f(x)"/"g(x)"=sqrt(x-1)/(x-7)}}}

To find domains, denominators must not be 0 and square roots may not
be taken of negative numbers.

So denominator {{{x-7<>0}}}
               {{{x<>7}}}

And what's under the square root {{{x-1>=0}}}
                                 {{{x>=1}}}

-------------●=================○============>
-3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 

Domain = [1,7)U(7,<font size=5>∞</font>) 

Edwin</pre></b>