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108.10 Proof without words: ${\rm{tan }}{\pi\over {{\rm{12}}}}{\rm{=2 - }}\sqrt 3 {\rm{, tan }}{{{\rm{5}}\pi } \over {{\rm{12}}}}{\rm{=2 + }}\sqrt {\rm{3}} $

Published online by Cambridge University Press:  15 February 2024

Martin Lukarevski*
Affiliation:
Department of Mathematics and Statistics, University ”Goce Delcev” - Stip, North Macedonia e-mail: martin.lukarevski@ugd.edu.mk
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Copyright
© The Authors, 2024 Published by Cambridge University Press on behalf of The Mathematical Association

References

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Leversha, G., What makes a good Proof without Words, Math. Gaz. 105 (July 2021) pp. 271281.CrossRefGoogle Scholar