Example4.2.1

We have seen that the matrix $$A = \left[\begin{array}{rr} 2 \amp 1 \\ 0 \amp 2 \\ \end{array}\right]$$ has the characteristic equation $$(2-\lambda)^2 = 0\text{.}$$ This matrix $$A$$ has a single eigenvalue $$\lambda = 2\text{,}$$ which has multiplicity $$2\text{.}$$

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