Предмет: Математика, автор: edgarmatem

помогите с 5 заданием!! база математика

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Автор ответа: idrisov2002

sin^2 a* cos^2 a=1 (тригонометрическое тождество)
sin^2 a=1^2- cos^2 a (корень из 91/10 в квадрате)
sin^2 a=1-0,91
sin^2 a=0,09
sin a=0,3 Ответ:0,3

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Text for Reading Comprehension №3

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