Question
Show that $\left(\begin{array}{c}n \\ n-1\end{array}\right)=n$ and $\left(\begin{array}{l}n \\ n\end{array}\right)=1$.
Step 1
First, let's recall the formula for the binomial coefficient: $\left(\begin{array}{c}n \\ k\end{array}\right)=\frac{n!}{k!(n-k)!}$ Now, let's prove the given statements: Show more…
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