# Brahmagupta–Fibonacci identity

> expression of a product of sums of squares as a sum of squares

**Wikidata**: [Q279090](https://www.wikidata.org/wiki/Q279090)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Brahmagupta–Fibonacci_identity)  
**Source**: https://4ort.xyz/entity/brahmagupta-fibonacci-identity


## References

1. Freebase Data Dumps. 2013