# Concept derivation guides

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Concept guide



## [Dual basis and covector change](/en/derivations/derivation-mko-dual-vector-space-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-dual-vector-space)

For b1=(1,1),b2=(1,-1), phi1=(x+y)/2,phi2=(x-y)/2 form the dual basis.

Dual vector space

derivation-mko-dual-vector-space-01





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