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Exploring Hockey Stick Theorems: Proof of Results and Referencesby@hockeystick
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Exploring Hockey Stick Theorems: Proof of Results and References

by Hockey StickJune 26th, 2024
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In the proof of both theorems, we use induction. This paper is available on arxiv(https://arxiv.org/abs/1404.5106) under CC BY 4.0 DEED license. The hockey stick theorem in the trinomial triangles has been proved. It can be translated in Pascal pyramid as follows.
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Author:

(1) Sima Mehri, Farzanegan High School.

Abstract and 1 Introduction and Description of Results

2. Proof of Results and References

2. Proof of Results

In the proof of both theorems, we use induction.


Figure 4: Hockey Stick in Trinomial Triangle: 1 + 2 + 6 + 16 + 45 = 90 − 21 + 1



using properties of Pascal triangle, we get



The statement for k + 1 is also true, and the proof is completed.



using properties of the trinomial coefficients, we get



The statement for k + 1 is also true, and the proof is completed.


The hockey stick theorem in the trinomial triangles has been proved. This theorem can be translated in Pascal pyramid as follows :



Other similar theorems might be obtained for Pascal’s four dimensional and even n-dimensional pyramid.

References

1] G. Andrews, Euler’s ’Exemplum Memorabile Inductionis Fallacis’ and Trinomial Coefficients J. Amer. Math. Soc. 3 (1990), 653-669.


[2] P. Hilton and J. Pedersen, Looking into Pascal Triangle, Combinatorics, Arithmetic and Geometry Mathematics Magazine, Vol. 60, No. 5 (Dec., 1987), 305-316.


[3] Eric W.Weisstein, Trinomial Coefficient From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/TrinomialTriangle.html


[4] Eric W.Weisstein, Trinomial Triangle From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/TrinomialTriangle.html


This paper is available on arxiv under CC BY 4.0 DEED license.