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  1. 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 shown by the …

  2. 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 more useful …

  3. 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 unlocking the power of …

  4. Trigonometry Calculator

    Check out two popular trigonometric laws with the law of sines calculator and our law of cosines calculator, which will help you to solve any kind of triangle. This trigonometry calculator has two …

  5. Summary of trigonometric identities - Clark University

    Identities expressing trig functions in terms of their supplements. Sum, difference, and double angle formulas for tangent. The half angle formulas. The ones for sine and cosine take the positive or …

  6. Trigonometric functions - Math.net

    Trigonometric functions are also called circular functions. The table below shows the six trigonometric function values for the specified angles in both degrees and radians.

  7. TRIG Definition & Meaning - Merriam-Webster

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

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

    Jan 19, 2026 · There are six functions of an angle commonly used in trigonometry. Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant …

  9. Basic Trigonometric Functions | Brilliant Math & Science Wiki

    What can we measure in a triangle? The first objects that come to mind may be the lengths of the sides, the angles of the triangle, or the area contained in the triangle. We first explore trigonometric …

  10. Trig Identities Study Sheet - Science Notes and Projects

    Apr 3, 2015 · This study sheet has ten groups of trig identities for the basic trigonometry functions. Print a copy and keep it with your textbook today.