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MathBit

Summation Using an Expected Value Identity

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Page 923 | Received 18 Sep 2021, Accepted 27 Sep 2021, Published online: 13 Sep 2022

References

  • Treviño, E. (2019). Probabilistic proof that 1+2+⋯+n=n(n+1)2 . Amer. Math. Monthly. 126 (9): 840.

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