Question
characteristic equation det(A−λI)=0, where I is the identity matrix and λ represents the eigenvalues. 
The eigenvalues are the values of λ that satisfy this equation: 3 − λ =0 ⟹ λ=3 λ−1=0 ⟹ λ=1 λ−3=0 ⟹ λ=3 The eigenvalues are 1, 3, 3. More Quant Miscellaneous Questions
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