1.

What are the eigen values of the following 2 × 2 matrix \(\left[ {\begin{array}{*{20}{c}}2&{ - 1}\\{ - 4}&5\end{array}} \right]?\)

A. – 1 and 1
B. 1 and 6
C. 2 and 5
D. 4 and -1
Answer» C. 2 and 5


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