Предмет: Математика, автор: Nursama

сколько существует различных восьмизначных чисел , сумма каждого из которых равна 2

Ответы

Автор ответа: Аноним

0

Если в условии имеется ввиду : сумма цифр равна 2.
Тогда ответ 8.
Возможные варианты:
1) 200000000
2) 10000001
3) 10000010
4) 10000100
5) 10001000
6) 10010000
7) 10100000
8) 11000000
Один с первой 2
И если первая единица то на оставшихся семи разрядах можем составить еще семь вариантов. Итого 1+7=8 вариантов

Автор ответа: Nursama

0

спасииибо))

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