notes/education/math/MATH1060 (trig)/Addition and Subtraction.md
2024-10-16 11:23:24 -06:00

242 B

Given the formula \sin(\alpha + \beta):

 \sin(\alpha + \beta) = \sin(\alpha)\cos(\beta) + \cos(\alpha)\sin(\beta) 

Given the formula \cos(\alpha + \beta):

 \cos(\alpha + \beta) = \cos(\alpha)\cos(\beta) - \sin(\alpha)\sin(\beta)