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  1. Trigonometry - Wikipedia

    Trigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle' and μέτρον (métron) 'measure') [1] is a branch of mathematics concerned with relationships between angles and side lengths …

  2. Trigonometry - Math is Fun

    Trigonometry can find that missing angle and distance. Questions like these are common in engineering, computer animation and more. And trigonometry gives the answers! The main …

  3. Trigonometry | Definition, Formulas, Ratios, & Identities | Britannica

    May 11, 2025 · trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly …

  4. TRIG Definition & Meaning - Merriam-Webster

    The meaning of TRIG is trigonometry. How to use trig in a sentence.

  5. Trigonometry Formulas - List of All Trigonometric Identities and ...

    The relationship between trigonometric functions is expressed via trigonometric identities, sometimes referred to as trig identities or trig formulae. They remain true for all real number …

  6. Trigonometric functions - Math.net

    Trigonometric functions are functions related to an angle. There are six trigonometric functions: sine, cosine, tangent and their reciprocals cosecant, secant, and cotangent, respectively. Sine, …

  7. Trigonometric Functions - Definition, Formula, Table, Identities, …

    Feb 24, 2025 · Trigonometric functions, also known as ‘ circular functions,’ are the ratio between any two sides of a right triangle: the opposite side, the adjacent side, and the hypotenuse with …

  8. Trigonometry -- from Wolfram MathWorld

    May 22, 2025 · The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the …

  9. What are the basic trigonometric identities? | Purplemath

    Basic trig identities are formulas for angle sums, differences, products, and quotients; and they let you find exact values for trig expressions.

  10. Trigonometric Functions with Their Formulas - Trig Identities

    Apr 19, 2023 · Also known as trigonometric ratios, they are designated by cosecant, secant, cotangent, tangent, cosine and sine. Any student learning these functions should understand …