Answer
$1$
Work Step by Step
Binomial Coefficient can be defined as:
$\displaystyle \binom{n}{k}=\dfrac{n!}{k!(n-k)!}$
Need to apply the formula to get the Binomial Coefficients.
Here, $n=6,k=6$
Therefore,
$\displaystyle \binom{6}{6}=\dfrac{6!}{6!(6-6)!}$
$=\dfrac{ 6!}{(6!)}$ $\bf{(Simplify)}$
$=1$