Prosthaphaeresis Formulas

Author

Eric W. Weisstein
February 17, 2006

This notebook downloaded from http://mathworld.wolfram.com/notebooks/Trigonometry/ProsthaphaeresisFormulas.nb.

For more information, see Eric's MathWorld entry http://mathworld.wolfram.com/ProsthaphaeresisFormulas.html.

©2006 Wolfram Research, Inc. except for portions noted otherwise

Formulas

Factor//@TrigFactor/@{
Sin[α]+Sin[β],
Sin[α]-Sin[β],
Cos[α]+Cos[β],
Cos[α]-Cos[β]
}//TableForm