trigonometric identity

noun

A trigonometric equation that is true for all values of the input variable for which both sides of the equation are defined.

“The trigonometric identity sin(2x) = 2sin(x)cos(x).”

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Meanings

nountrigonometric identity (plural trigonometric identities)

plural trigonometric identities

  1. mathematicsA trigonometric equation that is true for all values of the input variable for which both sides of the equation are defined.

    The trigonometric identity sin(2x) = 2sin(x)cos(x).

Translations

Finnish trigonometrinen identiteetti
  • trigonometrinen identiteettiTranslations
French identité trigonométrique
  • identité trigonométriqueTranslations
Polish tożsamość trygonometryczna
  • tożsamość trygonometrycznaTranslations
Cite this entry
APA

trigonometric identity. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/trigonometric%20identity

MLA

“trigonometric identity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trigonometric%20identity. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “trigonometric identity,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/trigonometric%20identity.

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