Sum Difference Identities Calculator

Posted by Dinesh on

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

Sum Difference Identities - Trigonometry Calculation

Formula:

Sum Difference Identities Equations

sin(? + ?) = [sin(?) × cos(?)] + [cos(?) × sin(?)]
cos(? + ?) = [cos(?) × cos(?)] - [sin(?) × sin(?)]
tan(? + ?) = [tan(?) + tan(?)] / [(1 - tan(?) × tan(?))]
sin(? - ?) = [sin(?) × cos(?)] - [cos(?) × sin(?)]
cos(? - ?) = [cos(?) × cos(?)] + [sin(?) × sin(?)]
tan(? - ?) = [tan(?) - tan(?)] / [(1 + tan(?) × tan(?))]