Question

Find the characteristic equation of the matrix by inspection.

Answer 1

$\huge\mathfrak\green{Hello,}$

$\huge\underline{Answer:}$

det(A − λI) = 0 is called the characteristic equation of the matrix A. Eigenvalues λ of A are roots of the characteristic equation. Associated eigenvectors of A are nonzero solutions of the equation (A − λI)x = 0.

$Hope\:it\:helps!$

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$\huge\mathfrak\purple{Aaravxxx}$