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Eigenvalues & Eigenvectorshard
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If the characteristic polynomial of a 3×33 \times 33×3 matrix is p(λ)=−λ3+5λ2−7λ+3p(\lambda) = -\lambda^3 + 5\lambda^2 - 7\lambda + 3p(λ)=−λ3+5λ2−7λ+3, what is the trace of A2A^2A2?