Sum and Difference Formulas
- \(\displaystyle \sin(u \pm v) = \sin u \cos v \pm \cos u \sin v\)
- \(\displaystyle \cos(u \pm v) = \cos u \cos v \mp \sin u \sin v\)
- \( \tan(u \pm v) = \dfrac{\tan u \pm \tan v}{1 \mp \tan u \tan v}\)