Предмет: Математика, автор: киселман200

Плиз ребят задание номер 5 помогите !!!

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Автор ответа: irinan2014

Решаем через основное тригонометрическое тождество.

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Автор ответа: киселман200

Спасибо ,этот уже решил ,не поможешь пожалуйста решить 6 задание

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