# Proofs of trigonometric identities

> Wikimedia list article

**Wikidata**: [Q7250037](https://www.wikidata.org/wiki/Q7250037)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Proofs_of_trigonometric_identities)  
**Source**: https://4ort.xyz/entity/proofs-of-trigonometric-identities


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)