Proof Without Words: An Alternating Series

Author: Nelsen, Roger B.

Source: The College Mathematics Journal, Volume 43, Number 5, November 2012 , pp. 370-370(1)

Publisher: Mathematical Association of America

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Abstract:

A visual proof that 1 - (1/2) + (1/4) - (1/8) + ··· 1/(1+x4) converges to 2/3.

Document Type: Research article

DOI: http://dx.doi.org/10.4169/college.math.j.43.5.370

Publication date: 2012-11-01

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