Предмет: Алгебра, автор: kroma702

Чи є рівність х - (у - 21) = х - у + 21 тотожністю

Ответы

Автор ответа: mawos

x-(y-21)=x-y+21 - ці вирази тотожно рівні, адже розкриття дужок є тотожним перетворенням

Автор ответа: A1l9i8n4a

Ответ:

Так

Объяснение:

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