Предмет: Математика, автор: оля442

упростите выражение, сложив подобные слагаемые: 11/21n-2/21n-19/21n+5/21n

Ответы

Автор ответа: litanalove

тк везде одинаковые знаменатели, тогда
(11 -2 -19 +5)/21n =5/21n

Автор ответа: litanalove

минус 5/21n

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