olymmath

HMMT 2024 U15

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Let a⋆b=ab−2a \star b=a b-2. Compute the remainder when (((579⋆569)⋆559)⋆⋯⋆19)⋆9(((579 \star 569) \star 559) \star \cdots \star 19) \star 9 is divided by 100 . Proposed by: Rishabh Das

Dataset text NuminaMath olympiads. Quoted with source.

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