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Definition 2024

Pythagorean_trigonometric_identity

Pythagorean trigonometric identity

English

Noun

Pythagorean trigonometric identity ‎(uncountable)

(trigonometry) The equality $\sin(x)^{2}+\cos(x)^{2}=1$ , holding for all real and complex x, equivalent to the application of the Pythagorean theorem to the unit circle.

Translations

statement that sum of squares of sine and cosine equals one

Polish: jedynka trygonometryczna f