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Math Bite: Finding e in Pascal's Triangle

Harlan J. Brothers
Mathematics Magazine
Vol. 85, No. 1 (February 2012), p. 51
DOI: 10.4169/math.mag.85.1.051
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Page Count: 1
Topics: Ratios
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Summary If sn is the product of the entries in row n of Pascal's triangle then (sn + 1/sn)/(sn/sn − 1) = (1 + 1/n)n, which has the limiting value e.

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