Answer
$\dfrac{1}{7}$
Work Step by Step
Using the concepts of radicals, the given expression, $
\dfrac{1}{\sqrt{49}}
,$ is equivalent to
\begin{align*}\require{cancel}
&
\dfrac{1}{\sqrt{7^2}}
\\\\&=
\dfrac{1}{7}
.\end{align*}
Hence, the given equation simplifies to $
\dfrac{1}{7}
.$
