Answer
$=11$
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, $n=11,k=1$
Therefore,
$\displaystyle \binom{11}{1}=\dfrac{11!}{1!(11-1)!}$
$=\dfrac{ 11 \cdot 10!}{10!}$ $\bf{(Simplify)}$
$=11$