Trigonometric Addition Formulas/Also defined as
Trigonometric Addition Formulas: Also defined as
Some sources include the Trigonometric Subtraction Formulas in with the Trigonometric Addition Formulas.
Other sources lump the Trigonometric Addition Formulas and Trigonometric Subtraction Formulas together and call them all Compound Angle Formulas.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): addition formula: 1.