The Eigenvalues of the Matrix $$A = \left( \begin{array} { l l } 1 & - 2 \\1 & - 1\end{array} \right)$$

question 35

Multiple Choice

The eigenvalues of the matrix $$A = \left( \begin{array} { l l } 1 & - 2 \\1 & - 1\end{array} \right)$$ are

• A) \(\pm \sqrt { 3 }\)
• B) \(\pm \sqrt { 3 } i\)
• C) \(\pm 1\)
• D) \(\pm 2 i\)
• E) \(\pm\)

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