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Mathematics 9 Online
OpenStudy (anonymous):

упростить sin2a/1-sin^2

OpenStudy (anonymous):

Я буду использовать Google переводчик для этого ;) Когда вы говорите sin2a / 1, значит ли это грехом (2а / 1)? Потому что это было бы просто грех (2а). Можете ли вы указать?

OpenStudy (anonymous):

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