Напиши предложения в прошедшем времени. they play football. he gets up at 7 o`clock. my parents are at work. !
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Ответы на вопрос:
They played football, he got up at 7 o'clock , my parents were at work
(sin^2x)^3+(cos^2x)^3=(sin^2x+)^2-sin^2xcos^2x+(cos^2x)^2)= ((sin^2x+cos^2x)^2-2*sin^2xcos^2x-1/4sin^22x=1--1/2sin^22x-1/4sin^22x=1-3/4sin^22x
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