A GEOMETRIC METHOD FOR FINDING THE DERIVATIVE OF TRIGONOMETRIC FUNCTIONS. CONNECTION OF HARMONIC AND EXPONENTIAL FUNCTIONS

Authors

A.Zh. Khachatryan National Polytechnic University of Armenia Author
H.R. Melkonyan National Polytechnic University of Armenia Author

Keywords:

derivative, sine, cosine, Euler's formula

Abstract

A new method based on geometric considerations for determining the known relationships between trigonometric functions and their derivatives is proposed. On the basis of the developed approach, the classical result of Euler concerning the connection between elementary trigonometric functions and the exponential function is also reproduced.

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13.03.2026

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