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Fill in the blanks to make the equation true

 

\binom{n}{k} = \binom{n - 2}{k} + \binom{n - 2}{k - 1} + \binom{n  - 1}{k} + \binom{n - 1}{k - 1} + \binom{n}{k - 1} + \binom{n}{k + 1}

 Dec 3, 2022
 #1
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Each blank should contain a positive integer.

 Dec 3, 2022

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