Trigonometry
Definition
Trigonometry is a branch of mathematics that deals with relationships between angles and sides of triangles. It involves studying trigonometric functions such as sine, cosine, and tangent.
Related terms
Right Triangle: A right triangle is a triangle that has one angle measuring 90 degrees. Trigonometry often focuses on right triangles because their properties can be easily analyzed using trigonometric functions.
Unit Circle: The unit circle is a circle with radius 1 centered at the origin of the coordinate plane. It plays an important role in trigonometry by providing values for sine and cosine functions at various angles.
Pythagorean Identity: The Pythagorean identity is a fundamental trigonometric identity that relates the three basic trigonometric functions (sine, cosine, and tangent) with the Pythagorean theorem.
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