Предмет: Алгебра, автор: siushkod

tg(pi/2+a), если ctg a=4/3 помогите решить

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Автор ответа: amin07am
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Автор ответа: siushkod
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Красавчик, спасибо тебе , час с этим примером мучился не мог решить
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