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Консультация № 192916
15.03.2018, 16:24
0.00 руб.
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1
Здравствуйте! Прошу помощи в следующем вопросе:
sin^4(x)+cos^4(x)=(7/2)sin(x)cos(x)
sin^4(x)+cos^4(x)=(7/2)sin(x)cos(x)
Обсуждение
15.03.2018, 16:27
общий
это ответ
Здравствуйте, RIM783074!
Учтите, что sin4x+cos4x=1-2sin2xcos2x, и попробуйте преобразовать заданное уравнение к виду квадратного уравнения относительно sin2x.
Учтите, что sin4x+cos4x=1-2sin2xcos2x, и попробуйте преобразовать заданное уравнение к виду квадратного уравнения относительно sin2x.
Об авторе:
Facta loquuntur.
Facta loquuntur.
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