Sum of a Telescoping Series

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For each , the area of the corresponding colored region is
, therefore
.
Contributed by: Soledad Mª Sáez Martínez and Félix Martínez de la Rosa (March 2011)
Open content licensed under CC BY-NC-SA
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Reference: Füsun Akman, "Proofs without Words under the Magic Curve," The College Mathematics Journal, 33(1), 2002 pp. 42–46.
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"Sum of a Telescoping Series"
http://demonstrations.wolfram.com/SumOfATelescopingSeries/
Wolfram Demonstrations Project
Published: March 7 2011