Trigonometric formulas (trigonometric formulas) or trigonometric identities describe the relationship between sine, cosine, tangent, and cotangent and are used in solving mathematical problems.
Trigonometric formulas: - Basic trigonometric identities - Formulas of the double argument - Formulas of the triple argument - Half-argument formulas - Squares formulas for trigonometric functions - Cube formulas for trigonometric functions - Formulas of trigonometric functions in the fourth degree - Addition and difference formulas for trigonometric functions - Formulas for the sum of trigonometric functions - Difference formulas for trigonometric functions - Formulas of products of trigonometric functions - Equivalence formulas for trigonometric functions - Table of values of the main trigonometric functions - The solution of trigonometric equations - Relations of inverse trigonometric functions - Signs of trigonometric functions in quarters - Trigonometric constants
