Pythagorean trigonometric identities

A form of Pythagorean trigonometric identity — 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.

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Meanings

noun
  1. pluralplural of Pythagorean trigonometric identity
Cite this entry
APA

Pythagorean trigonometric identities. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Pythagorean%20trigonometric%20identities

MLA

“Pythagorean trigonometric identities.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Pythagorean%20trigonometric%20identities. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Pythagorean trigonometric identities,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Pythagorean%20trigonometric%20identities.

Source: Pythagorean trigonometric identities on Wiktionary, CC BY-SA 4.0.