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kopkirill
@kopkirill
July 2022
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Упростите выражение.
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ЭллисЛинк
(x+y)/y * ( x/(x+y) - (x-y)/x ) =
(x+y)/y * x^2-(x-y)(x+y)/x(x+y) =
(x^2-x^2+y^2)/xy = y/x
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Answers & Comments
(x+y)/y * x^2-(x-y)(x+y)/x(x+y) =
(x^2-x^2+y^2)/xy = y/x