Предмет: Математика, автор: 13579x1

Помогите......ребяяяят....прошу вас только правильный вариант!

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Ответы

Автор ответа: nanomi

0

(аn) - арифметическая прогрессия
аn= a1+ d(n-1)
a6= -12 + 2*5
a6= -2
Ответ: -2

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