Sum to Product Calculator

Posted by Dinesh on

Use the simple trigonometry calculator to calculate sum to product of trigonometric identities online.

Sum to Product Trigonometry Identities Calculator

Formula:

sin(?) + sin(?) = 2 × sin((?)+(?)/2) × cos((?)-(?)/2)
sin(?) - sin(?) = 2 × cos((?)+(?)/2) × sin((?)-(?)/2)
cos(?) + cos(?) = 2 × cos((?)+(?)/2) × cos((?)-(?)/2)
cos(?) - cos(?) = -2 × sin((?)+(?)/2) × sin((?)-(?)/2)