Sum to Product Calculator
Posted by Dinesh onUse the simple trigonometry calculator to calculate sum to product of trigonometric identities online.
Sum to Product Trigonometry Identities Calculator
Formula:
sin(θ) + sin(φ) = 2 × sin((θ)+(φ)/2) × cos((θ)-(φ)/2)
sin(θ) - sin(φ) = 2 × cos((θ)+(φ)/2) × sin((θ)-(φ)/2)
cos(θ) + cos(φ) = 2 × cos((θ)+(φ)/2) × cos((θ)-(φ)/2)
cos(θ) - cos(φ) = -2 × sin((θ)+(φ)/2) × sin((θ)-(φ)/2)