Предмет: Алгебра, автор: KeiraSM

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Очень нужно

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Автор ответа: Larisaremizowa

1

(201²-99²)×3^3n-5/3^3n-3=( 201-99)(201+99)×3^(3n-5-3n+3)=
=102×300×3-²=34×100=3400

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