Предмет: Математика, автор: beksultan010k

В каждом следующем ряду на 2 квадрата больше, чем в предыдущем. Число квадратов 15 ряду равно

Ответы

Автор ответа: ivansharapov1045151

Ответ:

Дана арифметическая прогрессия а1 = 3; d = 2; a15 = а1+14d;

a15 = 3+28 = 31

Пошаговое объяснение:

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