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Bulletin of the American Mathematical Society

ISSN 1088-9485(online) ISSN 0273-0979(print)

 
 

 

Two properties of the function $\cos x$


Author: Herbert E. Robbins
Journal: Bull. Amer. Math. Soc. 50 (1944), 750-752
DOI: https://doi.org/10.1090/S0002-9904-1944-08232-3
MathSciNet review: 0011342
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DOI: https://doi.org/10.1090/S0002-9904-1944-08232-3

American Mathematical Society