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Комбинаторика, 6 класс.

Dec. 1st, 2016 09:31 pm
edhelwen: (Вопрос)
[personal profile] edhelwen
Сколько разных (бессмысленных) слов можно составить из каждого из слов "кабинет", "карандаш" и "математика"?
Я предположила, что 7!, 8!/3! и 10!/3!/2/2 соответственно, но это практически пальцем в небо.
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