Предмет: Математика, автор: xxx134

b1=1 b2=1/3 b3=1/9 s=? геометрическая прогрессия

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Автор ответа: IrkaShevko

0

q = 1/3
эта геометрическая прогрессия бесконечно убывающая

S = b1/(1-q) = 1/(1-1/3) = 3/2 = 1.5

Автор ответа: xxx134

0

спасибо

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