Write the following expression as a single combination $\binom{n}{k}$ so that $k \neq 1$ and $n-k \neq 1.$ \binom{3}{1} + \binom{3}{2} = ?
The expression (kn)+(n−kn) is always equal to (kn+1), which can be proven using Pascal's identity. Therefore, (31)+(32)=(3+11) =(41).
The question specifies that k≠1
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