Trigonometry Formulas Involving Double Angle Identities.
Advertisement
sin2A = 2sinAcosA=2tanA/1+tan2A
cos2A = cos2A–sin2A=1–2sin2A=2cos2A–1=1−tan2A/1+tan2A
tan2A = 2tanA/1–tan2A
Math
Math Formula
- asked 3 years ago
- B Butts