differential geometry - Proving an identity regarding Levi-civita connections of a metric - Mathematics Stack Exchange
SOLVED: Question 1 Vector Identities in 3D In lecture we introduced the Kronecker delta ij and the Levi-Civita symbol €ijk which let us express the dot product and cross product of vectors
Levi-Civita symbol - Wikipedia
Use the properties of Levi-Civita symbol and | Chegg.com