Предмет: Математика, автор: dazanbek

Укажите все значения параметра, a при каждом из которых уравнение sin^4x+cos^4x=a*sinx*cosx имеет решения

Аноним: Нужно решить неравенство -1 <= (-a±sqrt(a^2+8))/2 <= 1

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Автор ответа: Аноним
5

Решение на двух листках ===>>

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