Предмет: Математика, автор: sevgen853

чтобы открыть сейф нужен код из 4 чисел. Нужно найти количество неверных кодов если:
1)код не содержит повторяющиеся числа
2)код может иметь повторяющиеся числа

Ответы

Автор ответа: zharassabina

0

4444или 8888или2222 или7777

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