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Автор - kachkinan

Срочно!
Найдите двадцать восьмой член арифметической прогрессии -30;-28;-26;...

Ответ

Автор - m11m
d=-28-(-30)=2
A₂₈=A₁+27d=-30+27*2=-30+54=24
Ответ: 24

Ответ

Автор - aicp
вроде ответ 24..........

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