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OpenStudy (inkyvoyd):
In how many ways can 13 be written as the sum of 4 distinct positive integers?
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OpenStudy (inkyvoyd):
Order does not matter. I hate you, combinatorics.
OpenStudy (anonymous):
distinct? like none of the four digits are the same?
OpenStudy (inkyvoyd):
I'm not sure actually. Is it easily possible to solve for either case? I do know that the order of the numbers does NOT matter.
OpenStudy (anonymous):
A solution using Mathematica 9 is attached.
OpenStudy (inkyvoyd):
Niice.
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