Предмет: Математика, автор: lip2

найдите сумму первых десяти членов арифметической прогрессии если b1=-11,5 b10=-61,5

Ответы

Автор ответа: Dmitriy48

-11.5-16.5-21.5-26.5-31.5-36.5-41.5-46.5-51.5-56.5-61.5=-401.5

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