The matrix left( begin array 20 c 2& - 4 4&...

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The matrix \[\left( {\begin{array}{*{20}{c}} 2&{ - 4} \\ 4&{ - 2} \end{array}} \right)\] has

A. real eigenvalues and eigenvectors

B. real eigenvalues but complex eigenvectors

C. complex eigenvalues but real eigenvectors

D. complex eigenvalues and eigenvectors

Answer: Option D

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