- #1
BlazNProdigy
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Homework Statement
Proove that...
(AxB)x(CxD)=(A.BxD)C-(A.BxC)D=(A.CxD)B-(B.CxD)A
using Permutation Symbols
Homework Equations
The Attempt at a Solution
I am confused about what to do after the third line from 'vela's response' (Post #2 from the reference link below).
Reference https://www.physicsforums.com/threa...rmutation-tensor-and-kroenecker-delta.454568/