Предмет: Алгебра, автор: kurmambaevaalina

помогите пожалуйста, сроооччно​

Приложения:

Ответы

Автор ответа: akkcsgo072
1

Ответ:

18

Объяснение:

1.

а) А3/4 - C 2/4 =( 4! / (4-3)! )-( 4! / 2! * (4 - 2)! ) = 24 - 6 = 18

kurmambaevaalina: а на b ответ¿
akkcsgo072: а щас
akkcsgo072: а как добавить ответ
kurmambaevaalina: суда напиши, в коментарии
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