# Concept derivation guides

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Concept guide



## [Rank and nullity for three source coordinates](/en/derivations/derivation-mko-rank-nullity-theorem-01/?from=%2Fen%2Fderivations%2F%3Fq%3Dmko-rank-nullity-theorem)

For T:R3 to R2, A=[[1,2,3],[2,4,6]] has rank 1 and nullity 2, with 3=1+2.

Rank-nullity theorem

derivation-mko-rank-nullity-theorem-01





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