Sum Cubes with Triangles (visual proof without words V)
This is a short, animated (wordless) visual proof demonstrating the sum of the first n positive cubes by rearranging triangular arrays into a larger triangular array.
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Here are four other visual proofs of sum of cubes formulas:
• Sum of Cubes IV (Nicomachus's Theorem)
• Visual Sum of Cubes II
• Sum Of Cubes I (visual proof)
• Visual Sum of Cubes III
This animation is based on a visual proof by Parames Laosinchai from the December 2012 issue of Mathematics Magazine (https://www.jstor.org/stable/10.4169/... page 360).
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Music in this video:
Voice of Earth by Alex-Productions | https://onsound.eu/
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Creative Commons / Attribution 3.0 Unported License (CC BY 3.0)
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