Предмет: Математика, автор: Betmen2006

знайдіть суму всіх натуральних чисел більших за 30 але менше за 130 що кратні 8

Аноним: ty blyad' putinu eto rasskagi

Ответы

Автор ответа: zberdovsikov

1

Ответ:

Пошаговое объяa₁=56 an=176

n=(180-50)÷8=16,26 ⇒

n=16

S₁₆=(56+176)*16/2=232*8=1856

Ответ: S=1856.снение:

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