The Eigenvalues Of $A = \left( \begin{array} { c c } 2 & - 1 \\- 1 & 2\end{array} \right)$

question 24

Multiple Choice

The eigenvalues of $A = \left( \begin{array} { c c } 2 & - 1 \\- 1 & 2\end{array} \right)$ is

• A) \(\pm 1\)
• B) \(- 2 \pm i\)
• C) \(2 \pm i\)
• D) \(1,3\)
• E) \(- 1 , - 3\)

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