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  1. Trigonometry - Wikipedia

    Trigonometry is known for its many identities. These trigonometric identities [5] are commonly used for rewriting trigonometrical expressions with the aim to simplify an expression, to find a …

  2. Introduction to Trigonometry - Math is Fun

    Trigonometry helps us find angles and distances, is used a lot in science, engineering, video games, and more! The triangle of most interest is the right-angled triangle. The right angle is …

  3. Trig Calculator | Trigonometric Calculator

    This trig calculator finds the values of trig functions and solves right triangles using trigonometry.

  4. Trigonometry | Khan Academy

    Explore the world of trigonometry by mastering right triangles and their applications, understanding and graphing trig functions, solving problems involving non-right triangles, and …

  5. What is Trigonometry? Formulas, Table, Examples - Cuemath

    Trigonometry is the branch of mathematics that deals with the relationship between ratios of the sides of a right-angled triangle with its angles. The ratios used to study this relationship are …

  6. HICL and TRIG abandon £5.3B merger plan after shareholder revolt

    5 days ago · HICL scraps £5.3B merger with TRIG after investor backlash, despite boards insisting the deal offered scale, liquidity and strategic benefits.

  7. Trigonometric function | Definition, Formula, & Concepts

    Nov 28, 2025 · trigonometric function, in mathematics, one of the six functions (sine [sin], cosine [cos], tangent [tan], cotangent [cot], secant [sec], and cosecant [csc]) that represent ratios of …

  8. Trigonometric functions - Wikipedia

    In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) [1] are real functions which relate an angle of a right-angled triangle to …

  9. List of trigonometric identities - Wikipedia

    In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. …

  10. HICL-TRIG merger called off after shareholder revolt

    5 days ago · HICL Infrastructure’s proposed merger with The Renewables Infrastructure Group (TRIG) has been called off following significant shareholder pressure. In a stock exchange …