Answer
$\frac{\sqrt{65}}{11}$.
Work Step by Step
The given expression is
$=\sqrt{\frac{65}{121}}$
Use quotient property of square roots.
$=\frac{\sqrt{65}}{\sqrt{121}}$
Use $121=11^2$.
$=\frac{\sqrt{65}}{\sqrt{11^2}}$
Simplify.
$=\frac{\sqrt{65}}{11}$.