2020 CIME II Problems/Problem 2

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Problem 2

Find the number of nonempty subsets $S$ of $\{1,2,3,\ldots,10\}$ such that $S$ has an even number of elements, and the product of the elements of $S$ is even.

Solution

See also

2020 CIME (ProblemsAnswer KeyResources)
Preceded by
Problem 1
Followed by
[[2020 CIME Problems/Problem {{{num-a}}}|Problem {{{num-a}}}]]
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