Math Bite: Further Generalizations of a Curiosity That Feynman Remembered All His Life

by Garry J. Tee (University of Auckland, New Zealand)

This article originally appeared in:
Mathematics Magazine
February, 1999

Subject classification(s): Geometry and Topology | Trigonometry | Trigonometric Identities
Applicable Course(s): 2.2 Trigonometry | 4.1 Introduction to Proofs

Generalizes a formula for product of cosines.

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