Предмет: Алгебра, автор: len441kk

знайдіть знаменник геометричної прогресії, якщо b7=80, b9 =2​

Ответы

Автор ответа: Irremediable
2

b9 = b7 * q²

2 = 80 * q²

2/80 = q²

q = 1/√40

Відповідь : знаменник геометричної прогресії рівний 1/√40

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