Show that if n is a positive integer, then (Here the sum
Chapter 5, Problem 65E(choose chapter or problem)
Show that if \(n\) is a positive integer, then
\(\sum_{\left\{a_{1}, \ldots, a_{k}\right\} \subseteq\{1,2, \ldots, n\}} \frac{1}{a_{1} a_{2} \cdots a_{k}}=n\) .
(Here the sum is over all nonempty subsets of the set of the \(n\) smallest positive integers.)
Equation Transcription:
Text Transcription:
n
\sum_{\{a_{1}, \ldots, a_{k}\} \subseteq\{1,2, \ldots, n\}} \frac{1}{a_{1} a_{2} \cdots a_{k}}=n .
n
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