Предмет: Математика, автор: mauletmerej

2 Сколько различных трёхзначных чисел можно составить из цифр 5, 6, 7, 8, 9, если
а) цифры могут повторяться
б) цифры должны быть различными​

Ответы

Автор ответа: today0
4

Ответ:

567,576,589,678,659,765,786,869,857,956,978.

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