andrewweltz2149 andrewweltz2149

03-05-2018
Mathematics

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Show that the sum, over the set of people at a party, of the number of people a person has shaken hands with, is even. assume that no one shake his or her own hand.

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ninaj72785 ninaj72785

03-05-2018

I’d think how rude it’s a full house

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