Trigonometrical Ratios of the half-angles of a Triangle (Geometrical Proofs)

Alex D. Russell

doi:10.1017/S0013091500035823

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Trigonometrical Ratios of the half-angles of a Triangle (Geometrical Proofs)

Published online by Cambridge University Press: 20 January 2009

Alex D. Russell

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Type: Mathematical Note
Information: Proceedings of the Edinburgh Mathematical Society , Volume 39 , February 1920 , pp. 72 - 74

DOI: https://doi.org/10.1017/S0013091500035823 [Opens in a new window]
Copyright: Copyright © Edinburgh Mathematical Society 1920

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Trigonometrical Ratios of the half-angles of a Triangle (Geometrical Proofs)

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