Предмет: Алгебра, автор: aminadoskalieva1307

Упростите выражение. Пожалуйста номер 4

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Автор ответа: zhekatraktorist90

0

sin^2 (a)-tg^2 a /cos^2 (a)-ctg^2 a

memmedovrevan202020: привет

memmedovrevan202020: можешь помочь?

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