This is a short, animated visual proof showing the sum of the infinite geometric series with first term 6/7 and ratio 1/7, which in turn allows us to compute the sum of the series of powers of 1/7 and determine an interesting base 7 representation of 1.
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For a longer, wordless version of this animation with two other proofs, see ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L-pxcCk3Xi4.htmlsi=hCnLn61vVxSOp2b4
Also, check out my playlist on geometric sums/series: ru-vid.com/group/PLZh9gzIvXQUsgw8W5TUVDtF0q4jEJ3iaw
This animation is based on a proof by Stephan Berendonk (2020) from the November 2020 issue of The College Mathematics Journal, (doi.org/10.1080/07468342.2020.1830649 p. 385)
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17 июн 2024