Предмет: Алгебра, автор: 132ponchik132

МЕГА СРОЧНО!!!!!!!!!!
Скільки чотирицифрових чисел можна скласти з цифр 5;6;7;8;9 якщо в числі:
1) цифри не повторюються
2) цифри повторюються

svetasokil243: 5432
svetasokil243: 6123 7423 8132 9012
svetasokil243: 2)5654 6263 7071 82839190

Ответы

Автор ответа: WaineSl
1

Ответ:

1)

5×4×3×2=20×6=120

Объяснение:

2)

5×5×5×5=5⁴=25×25=625

Думаю так))

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