Final answer:
A trigonometric identity verifier is used to prove trigonometric identities by simplifying one side of the equation and comparing it to the other side to check if they are equal.
Step-by-step explanation:
The subject of this question is Mathematics, specifically Trigonometry. A trigonometric identity verifier is used to prove trigonometric identities by simplifying one side of the equation and comparing it to the other side to check if they are equal. This calculator provides step-by-step solutions to prove trigonometric identities, using algebraic manipulations, trigonometric identities, and properties of trigonometric functions.