Problems for
Intermediate Methods in Theoretical Physics

Edward F. Redish

Using de Moivre's Theorem

Use the complex exponential method to express sin(nθ) and cos(nθ) as functions of sin(θ) and cos(θ) for n = 2, 3, and 4. (The results for n = 2 are shown on the page "Applications of the Complex Exponential and De Moivre's Theorem."


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This page prepared by

Edward F. Redish
Department of Physics
University of Maryland
College Park, MD 20742
Phone: (301) 405-6120

Last revision 12. October, 2005.