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This is a short, animated visual proof demonstrating the finite geometric sum formula for any integer n with n greater than 3 (explicitly showing the cases n=7 and n=9 with k=3). This series (and its infinite analog when x less than 1) is important for many results in calculus, discrete mathematics, and combinatorics. #manim #math #geometricsums #series #calculus #mtbos #animation #theorem #pww #proofwithoutwords #visualproof #proof #iteachmath #finitesums #finiteseries #geometric #mathshorts #mathvideo
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This animation is based on a proof by Mingjang Chen from the December 2004 issue of Mathematics Magazine page 373 (doi.org/10.2307/3219202).
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