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Первый член и разность арифметической прогрессии равны -5 и 2 соответственно. Чему равен десятый член этой прогрессии: Выберите один правильный вариант для зтого вопроса

Ask by Stephens Hanson. in Russia
Mar 15,2025

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Десятый член арифметической прогрессии равен 13.

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Чтобы найти десятый член арифметической прогрессии, воспользуемся формулой \( a_n = a_1 + (n-1) \cdot d \), где \( a_1 \) — первый член, \( d \) — разность, а \( n \) — номер члена. Подставим значения: \( a_1 = -5 \), \( d = 2 \), и \( n = 10 \). Тогда: \( a_{10} = -5 + (10-1) \cdot 2 = -5 + 18 = 13 \). Таким образом, десятый член этой прогрессии равен 13.

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