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A-M-2-2-and-det-A-0-A-3-A-2-A-det-A-2I-




Question Number 213435 by mnjuly1970 last updated on 14/Nov/24
         A ∈ M_(2×2)   ,and ,det (A)≠0 :   A^3  = A^2  + A          ⇒  det ( A −2I )=?
AM2×2,and,det(A)0:A3=A2+Adet(A2I)=?

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