Phrase guide

trigonometric identity

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, trigonometry

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: trigonometrinen identiteetti — Translations
  • French: identité trigonométrique — Translations
  • Polish: tożsamość trygonometryczna — Translations