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Автор - lizi2005

Помогите пожалуйста!!
Найдите значение выражения у^2-9у+8 при у=1/2
Никак не совпадает с ответом((
Должно получится 3,75
Заранее спасибо)

Ответ

Автор - salavatshkola
(1/2)^2-9*1/2+8=0,25-4,5+8=-4,25+8=3,75

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