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Seriously... What are dual vectors?
I explained what a dual vector is in General Relativity.
I hope this video helps you understand better ! highlights : @14:20
* Sorry, but just to keep consistency with all my other videos,
at 11:38 the first element of the four vector should have a negative sign. I put the negative sign in dual vectors. Some people put that in ordinary vectors. Anyway, this is just a conventional thing, so at least not that important in this video.
