Double Angle Formula

°
Math

Calculate double angle using double angle identities.

Formula

sin(2θ)=2sinθcosθ; cos(2θ)=cos²θ−sin²θ; tan(2θ)=2tanθ/(1−tan²θ)
  • sin(2θ)=2sinθcosθ; cos(2θ)=cos²θ−sin²θ; tan(2θ)=2tanθ/(1−tan²θ)

Double Angle Formula

Double Angle Formula calculation.

Frequently asked questions

How is Double Angle Formula calculated?
sin(2θ)=2sinθcosθ; cos(2θ)=cos²θ−sin²θ; tan(2θ)=2tanθ/(1−tan²θ)