Answer
The value of the provided expression is $_{8}{{C}_{3}}$ = $56$
Work Step by Step
We compare the provided expression with the standard form and get $ n=8,r=3$.
Put the values into the combination formula:
That is,
$\begin{align}
& _{8}{{C}_{3}}=\frac{8!}{3!\left( 8-3 \right)!} \\
& =\frac{8!}{3!5!} \\
& =\frac{8\times 7\times 6\times 5!}{3\times 2\times 5!} \\
& =56
\end{align}$
