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Eigenvalues & Eigenvectorshard
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Let AAA be a 2×22 \times 22×2 matrix with eigenvalues λ1=3+4i,λ2=3−4i\lambda_1 = 3+4i, \lambda_2 = 3-4iλ1​=3+4i,λ2​=3−4i. What is the value of tr(A2)\text{tr}(A^2)tr(A2)?