In mathematics, sine and cosine are trigonometric functions of an angle.

Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle. Before getting stuck into the...

Choose the trigonometric function (e.g., sine, cosine, tangent) you want to calculate. Enter the angle value; when necessary, convert the angle from degrees or radians.

Cosine calculator online. cos (x) calculator.

Feb 4, 2025 · Learn about the cosine function in math. Get its definition, formula, and examples in trigonometry, geometry, and calculus.

The cosine function is one of the basic functions encountered in trigonometry (the others being the cosecant, cotangent, secant, sine, and tangent). Let be an angle measured counterclockwise from …

This cosine calculator is a twin tool to our sine calculator – add to them the tangent calculator, and you'll have a pack of the most popular trigonometric functions. Simply type the angle – in degrees or …