|Aug23-12, 07:49 AM||#1|
Rank of adjugate matrix
how that the rank of the adjugate matrix (r(adj(A))) is :
n if r(A)=n
1 if r(A)=n-1
0 if r(A)<n-1
How to deal with the proof? Can someone give more insight? What proof should I use here?
I have an idea only for the third statement.
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