Предмет: Алгебра, автор: tressacurly

Найти сумму первых семи членов геометрической прогрессии заданной формулой:

$b_{n} = 5*2^{n+1}$

Ответы

Автор ответа: manyny06

Ответ:

решение смотри на фотографии

Объяснение:

Приложения:

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